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Finding the Fourth Proportional to 228,287.52, 315,046.05 and 126,311.32

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Solution

The fourth proportional to 228,287.52, 315,046.05 and 126,311.32 is: 174,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,287.52 : 315,046.05 = 126,311.32 : x
  2. Step 2: Convert to fraction form
    228,287.52/315,046.05 = 126,311.32/x
  3. Step 3: Cross multiply
    228,287.52x = 315,046.05 × 126,311.32
  4. Step 4: Simplify right side
    228,287.52x = 39,793,882,436.29
  5. Step 5: Solve for x
    x = 39,793,882,436.29/228,287.52
  6. Step 6: Final answer
    x = 174,314.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.