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Finding the Fourth Proportional to 424,141.72, 636,212.70 and 199,337.08

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Solution

The fourth proportional to 424,141.72, 636,212.70 and 199,337.08 is: 299,005.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,141.72 : 636,212.70 = 199,337.08 : x
  2. Step 2: Convert to fraction form
    424,141.72/636,212.70 = 199,337.08/x
  3. Step 3: Cross multiply
    424,141.72x = 636,212.70 × 199,337.08
  4. Step 4: Simplify right side
    424,141.72x = 126,820,781,876.92
  5. Step 5: Solve for x
    x = 126,820,781,876.92/424,141.72
  6. Step 6: Final answer
    x = 299,005.68

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1.5x scale

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.