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Finding the Fourth Proportional to 658,002.50, 987,008.70 and 159,366.50

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Solution

The fourth proportional to 658,002.50, 987,008.70 and 159,366.50 is: 239,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,002.50 : 987,008.70 = 159,366.50 : x
  2. Step 2: Convert to fraction form
    658,002.50/987,008.70 = 159,366.50/x
  3. Step 3: Cross multiply
    658,002.50x = 987,008.70 × 159,366.50
  4. Step 4: Simplify right side
    658,002.50x = 157,296,121,988.55
  5. Step 5: Solve for x
    x = 157,296,121,988.55/658,002.50
  6. Step 6: Final answer
    x = 239,050.95

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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.