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Finding the Fourth Proportional to 428,371.52, 591,156 and 237,388

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Solution

The fourth proportional to 428,371.52, 591,156 and 237,388 is: 327,597.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,371.52 : 591,156 = 237,388 : x
  2. Step 2: Convert to fraction form
    428,371.52/591,156 = 237,388/x
  3. Step 3: Cross multiply
    428,371.52x = 591,156 × 237,388
  4. Step 4: Simplify right side
    428,371.52x = 140,333,340,528
  5. Step 5: Solve for x
    x = 140,333,340,528/428,371.52
  6. Step 6: Final answer
    x = 327,597.27

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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.