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Finding the Fourth Proportional to 363,452.27, 545,215.68 and 139,001.48

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Solution

The fourth proportional to 363,452.27, 545,215.68 and 139,001.48 is: 208,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,452.27 : 545,215.68 = 139,001.48 : x
  2. Step 2: Convert to fraction form
    363,452.27/545,215.68 = 139,001.48/x
  3. Step 3: Cross multiply
    363,452.27x = 545,215.68 × 139,001.48
  4. Step 4: Simplify right side
    363,452.27x = 75,785,783,713.13
  5. Step 5: Solve for x
    x = 75,785,783,713.13/363,452.27
  6. Step 6: Final answer
    x = 208,516.47

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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.