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Finding the Fourth Proportional to 372,395.52, 514,080 and 238,337.28

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Solution

The fourth proportional to 372,395.52, 514,080 and 238,337.28 is: 329,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,395.52 : 514,080 = 238,337.28 : x
  2. Step 2: Convert to fraction form
    372,395.52/514,080 = 238,337.28/x
  3. Step 3: Cross multiply
    372,395.52x = 514,080 × 238,337.28
  4. Step 4: Simplify right side
    372,395.52x = 122,524,428,902.40
  5. Step 5: Solve for x
    x = 122,524,428,902.40/372,395.52
  6. Step 6: Final answer
    x = 329,016.93

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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.