Home / 658,137.10-987,205.66-159,501.10

Finding the Fourth Proportional to 658,137.10, 987,205.66 and 159,501.10

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Solution

The fourth proportional to 658,137.10, 987,205.66 and 159,501.10 is: 239,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,137.10 : 987,205.66 = 159,501.10 : x
  2. Step 2: Convert to fraction form
    658,137.10/987,205.66 = 159,501.10/x
  3. Step 3: Cross multiply
    658,137.10x = 987,205.66 × 159,501.10
  4. Step 4: Simplify right side
    658,137.10x = 157,460,385,829.46
  5. Step 5: Solve for x
    x = 157,460,385,829.46/658,137.10
  6. Step 6: Final answer
    x = 239,251.65

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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.