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Finding the Fourth Proportional to 228,286.52, 315,044.67 and 126,310.32

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Solution

The fourth proportional to 228,286.52, 315,044.67 and 126,310.32 is: 174,313.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,286.52 : 315,044.67 = 126,310.32 : x
  2. Step 2: Convert to fraction form
    228,286.52/315,044.67 = 126,310.32/x
  3. Step 3: Cross multiply
    228,286.52x = 315,044.67 × 126,310.32
  4. Step 4: Simplify right side
    228,286.52x = 39,793,391,506.77
  5. Step 5: Solve for x
    x = 39,793,391,506.77/228,286.52
  6. Step 6: Final answer
    x = 174,313.37

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1.5x scale

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.