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Finding the Fourth Proportional to 275,767.80, 413,651.70 and 88,779.30

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Solution

The fourth proportional to 275,767.80, 413,651.70 and 88,779.30 is: 133,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,767.80 : 413,651.70 = 88,779.30 : x
  2. Step 2: Convert to fraction form
    275,767.80/413,651.70 = 88,779.30/x
  3. Step 3: Cross multiply
    275,767.80x = 413,651.70 × 88,779.30
  4. Step 4: Simplify right side
    275,767.80x = 36,723,708,369.81
  5. Step 5: Solve for x
    x = 36,723,708,369.81/275,767.80
  6. Step 6: Final answer
    x = 133,168.95

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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.