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Finding the Fourth Proportional to 428,375.52, 591,161.52 and 237,392

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Solution

The fourth proportional to 428,375.52, 591,161.52 and 237,392 is: 327,602.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,375.52 : 591,161.52 = 237,392 : x
  2. Step 2: Convert to fraction form
    428,375.52/591,161.52 = 237,392/x
  3. Step 3: Cross multiply
    428,375.52x = 591,161.52 × 237,392
  4. Step 4: Simplify right side
    428,375.52x = 140,337,015,555.84
  5. Step 5: Solve for x
    x = 140,337,015,555.84/428,375.52
  6. Step 6: Final answer
    x = 327,602.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.