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Finding the Fourth Proportional to 424,753.56, 636,835.10 and 187,967.07

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Solution

The fourth proportional to 424,753.56, 636,835.10 and 187,967.07 is: 281,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,753.56 : 636,835.10 = 187,967.07 : x
  2. Step 2: Convert to fraction form
    424,753.56/636,835.10 = 187,967.07/x
  3. Step 3: Cross multiply
    424,753.56x = 636,835.10 × 187,967.07
  4. Step 4: Simplify right side
    424,753.56x = 119,704,026,880.32
  5. Step 5: Solve for x
    x = 119,704,026,880.32/424,753.56
  6. Step 6: Final answer
    x = 281,819.95

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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.