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Finding the Fourth Proportional to 138,323.12, 207,503.88 and 44,798.64

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Solution

The fourth proportional to 138,323.12, 207,503.88 and 44,798.64 is: 67,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,323.12 : 207,503.88 = 44,798.64 : x
  2. Step 2: Convert to fraction form
    138,323.12/207,503.88 = 44,798.64/x
  3. Step 3: Cross multiply
    138,323.12x = 207,503.88 × 44,798.64
  4. Step 4: Simplify right side
    138,323.12x = 9,295,891,618.72
  5. Step 5: Solve for x
    x = 9,295,891,618.72/138,323.12
  6. Step 6: Final answer
    x = 67,204.18

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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.