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Finding the Fourth Proportional to 424,200.48, 636,305.76 and 108,648.96

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Solution

The fourth proportional to 424,200.48, 636,305.76 and 108,648.96 is: 162,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,200.48 : 636,305.76 = 108,648.96 : x
  2. Step 2: Convert to fraction form
    424,200.48/636,305.76 = 108,648.96/x
  3. Step 3: Cross multiply
    424,200.48x = 636,305.76 × 108,648.96
  4. Step 4: Simplify right side
    424,200.48x = 69,133,959,066.01
  5. Step 5: Solve for x
    x = 69,133,959,066.01/424,200.48
  6. Step 6: Final answer
    x = 162,974.73

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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.