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Finding the Fourth Proportional to 658,156.41, 987,234.63 and 159,520.41

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Solution

The fourth proportional to 658,156.41, 987,234.63 and 159,520.41 is: 239,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,156.41 : 987,234.63 = 159,520.41 : x
  2. Step 2: Convert to fraction form
    658,156.41/987,234.63 = 159,520.41/x
  3. Step 3: Cross multiply
    658,156.41x = 987,234.63 × 159,520.41
  4. Step 4: Simplify right side
    658,156.41x = 157,484,072,943.80
  5. Step 5: Solve for x
    x = 157,484,072,943.80/658,156.41
  6. Step 6: Final answer
    x = 239,280.62

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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.