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Finding the Fourth Proportional to 275,756.80, 413,635.20 and 88,768.30

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Solution

The fourth proportional to 275,756.80, 413,635.20 and 88,768.30 is: 133,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,756.80 : 413,635.20 = 88,768.30 : x
  2. Step 2: Convert to fraction form
    275,756.80/413,635.20 = 88,768.30/x
  3. Step 3: Cross multiply
    275,756.80x = 413,635.20 × 88,768.30
  4. Step 4: Simplify right side
    275,756.80x = 36,717,693,524.16
  5. Step 5: Solve for x
    x = 36,717,693,524.16/275,756.80
  6. Step 6: Final answer
    x = 133,152.45

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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.