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Finding the Fourth Proportional to 291,755.52, 435,034.80 and 291,197.70

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Solution

The fourth proportional to 291,755.52, 435,034.80 and 291,197.70 is: 434,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,755.52 : 435,034.80 = 291,197.70 : x
  2. Step 2: Convert to fraction form
    291,755.52/435,034.80 = 291,197.70/x
  3. Step 3: Cross multiply
    291,755.52x = 435,034.80 × 291,197.70
  4. Step 4: Simplify right side
    291,755.52x = 126,681,133,179.96
  5. Step 5: Solve for x
    x = 126,681,133,179.96/291,755.52
  6. Step 6: Final answer
    x = 434,203.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.