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Finding the Fourth Proportional to 424,630.66, 636,929.52 and 158,390.68

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Solution

The fourth proportional to 424,630.66, 636,929.52 and 158,390.68 is: 237,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,630.66 : 636,929.52 = 158,390.68 : x
  2. Step 2: Convert to fraction form
    424,630.66/636,929.52 = 158,390.68/x
  3. Step 3: Cross multiply
    424,630.66x = 636,929.52 × 158,390.68
  4. Step 4: Simplify right side
    424,630.66x = 100,883,699,784.87
  5. Step 5: Solve for x
    x = 100,883,699,784.87/424,630.66
  6. Step 6: Final answer
    x = 237,579.88

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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.