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Finding the Fourth Proportional to 252,683.92, 378,899.04 and 84,144.88

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Solution

The fourth proportional to 252,683.92, 378,899.04 and 84,144.88 is: 126,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,683.92 : 378,899.04 = 84,144.88 : x
  2. Step 2: Convert to fraction form
    252,683.92/378,899.04 = 84,144.88/x
  3. Step 3: Cross multiply
    252,683.92x = 378,899.04 × 84,144.88
  4. Step 4: Simplify right side
    252,683.92x = 31,882,414,252.92
  5. Step 5: Solve for x
    x = 31,882,414,252.92/252,683.92
  6. Step 6: Final answer
    x = 126,175.08

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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.