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Finding the Fourth Proportional to 428,374.52, 591,160.14 and 237,391

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Solution

The fourth proportional to 428,374.52, 591,160.14 and 237,391 is: 327,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,374.52 : 591,160.14 = 237,391 : x
  2. Step 2: Convert to fraction form
    428,374.52/591,160.14 = 237,391/x
  3. Step 3: Cross multiply
    428,374.52x = 591,160.14 × 237,391
  4. Step 4: Simplify right side
    428,374.52x = 140,336,096,794.74
  5. Step 5: Solve for x
    x = 140,336,096,794.74/428,374.52
  6. Step 6: Final answer
    x = 327,601.41

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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.