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Finding the Fourth Proportional to 424,408.48, 636,654.33 and 154,609.97

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Solution

The fourth proportional to 424,408.48, 636,654.33 and 154,609.97 is: 231,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,408.48 : 636,654.33 = 154,609.97 : x
  2. Step 2: Convert to fraction form
    424,408.48/636,654.33 = 154,609.97/x
  3. Step 3: Cross multiply
    424,408.48x = 636,654.33 × 154,609.97
  4. Step 4: Simplify right side
    424,408.48x = 98,433,103,678.40
  5. Step 5: Solve for x
    x = 98,433,103,678.40/424,408.48
  6. Step 6: Final answer
    x = 231,930.11

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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.