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Finding the Fourth Proportional to 424,537.08, 636,828.48 and 108,996.72

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Solution

The fourth proportional to 424,537.08, 636,828.48 and 108,996.72 is: 163,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,537.08 : 636,828.48 = 108,996.72 : x
  2. Step 2: Convert to fraction form
    424,537.08/636,828.48 = 108,996.72/x
  3. Step 3: Cross multiply
    424,537.08x = 636,828.48 × 108,996.72
  4. Step 4: Simplify right side
    424,537.08x = 69,412,215,522.59
  5. Step 5: Solve for x
    x = 69,412,215,522.59/424,537.08
  6. Step 6: Final answer
    x = 163,500.95

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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.