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Finding the Fourth Proportional to 658,127.53, 987,191.30 and 159,491.53

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Solution

The fourth proportional to 658,127.53, 987,191.30 and 159,491.53 is: 239,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,127.53 : 987,191.30 = 159,491.53 : x
  2. Step 2: Convert to fraction form
    658,127.53/987,191.30 = 159,491.53/x
  3. Step 3: Cross multiply
    658,127.53x = 987,191.30 × 159,491.53
  4. Step 4: Simplify right side
    658,127.53x = 157,448,651,575.27
  5. Step 5: Solve for x
    x = 157,448,651,575.27/658,127.53
  6. Step 6: Final answer
    x = 239,237.30

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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.