Home / 658,217.20-987,325.80-159,581.20

Finding the Fourth Proportional to 658,217.20, 987,325.80 and 159,581.20

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Solution

The fourth proportional to 658,217.20, 987,325.80 and 159,581.20 is: 239,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,217.20 : 987,325.80 = 159,581.20 : x
  2. Step 2: Convert to fraction form
    658,217.20/987,325.80 = 159,581.20/x
  3. Step 3: Cross multiply
    658,217.20x = 987,325.80 × 159,581.20
  4. Step 4: Simplify right side
    658,217.20x = 157,558,635,954.96
  5. Step 5: Solve for x
    x = 157,558,635,954.96/658,217.20
  6. Step 6: Final answer
    x = 239,371.80

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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.