Home / 658,154.25-987,231.42-159,518.25

Finding the Fourth Proportional to 658,154.25, 987,231.42 and 159,518.25

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Solution

The fourth proportional to 658,154.25, 987,231.42 and 159,518.25 is: 239,277.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,154.25 : 987,231.42 = 159,518.25 : x
  2. Step 2: Convert to fraction form
    658,154.25/987,231.42 = 159,518.25/x
  3. Step 3: Cross multiply
    658,154.25x = 987,231.42 × 159,518.25
  4. Step 4: Simplify right side
    658,154.25x = 157,481,428,463.42
  5. Step 5: Solve for x
    x = 157,481,428,463.42/658,154.25
  6. Step 6: Final answer
    x = 239,277.39

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.