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Finding the Fourth Proportional to 275,439.40, 413,159.10 and 88,469.80

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Solution

The fourth proportional to 275,439.40, 413,159.10 and 88,469.80 is: 132,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,439.40 : 413,159.10 = 88,469.80 : x
  2. Step 2: Convert to fraction form
    275,439.40/413,159.10 = 88,469.80/x
  3. Step 3: Cross multiply
    275,439.40x = 413,159.10 × 88,469.80
  4. Step 4: Simplify right side
    275,439.40x = 36,552,102,945.18
  5. Step 5: Solve for x
    x = 36,552,102,945.18/275,439.40
  6. Step 6: Final answer
    x = 132,704.70

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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.