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Finding the Fourth Proportional to 266,385.30, 399,577.95 and 108,527.70

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Solution

The fourth proportional to 266,385.30, 399,577.95 and 108,527.70 is: 162,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,385.30 : 399,577.95 = 108,527.70 : x
  2. Step 2: Convert to fraction form
    266,385.30/399,577.95 = 108,527.70/x
  3. Step 3: Cross multiply
    266,385.30x = 399,577.95 × 108,527.70
  4. Step 4: Simplify right side
    266,385.30x = 43,365,275,884.22
  5. Step 5: Solve for x
    x = 43,365,275,884.22/266,385.30
  6. Step 6: Final answer
    x = 162,791.55

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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.