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Finding the Fourth Proportional to 138,352.66, 207,508.33 and 38,502.44

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Solution

The fourth proportional to 138,352.66, 207,508.33 and 38,502.44 is: 57,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,352.66 : 207,508.33 = 38,502.44 : x
  2. Step 2: Convert to fraction form
    138,352.66/207,508.33 = 38,502.44/x
  3. Step 3: Cross multiply
    138,352.66x = 207,508.33 × 38,502.44
  4. Step 4: Simplify right side
    138,352.66x = 7,989,576,814.07
  5. Step 5: Solve for x
    x = 7,989,576,814.07/138,352.66
  6. Step 6: Final answer
    x = 57,747.91

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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.