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Finding the Fourth Proportional to 392,708.64, 541,981.91 and 237,745.35

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Solution

The fourth proportional to 392,708.64, 541,981.91 and 237,745.35 is: 328,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,708.64 : 541,981.91 = 237,745.35 : x
  2. Step 2: Convert to fraction form
    392,708.64/541,981.91 = 237,745.35/x
  3. Step 3: Cross multiply
    392,708.64x = 541,981.91 × 237,745.35
  4. Step 4: Simplify right side
    392,708.64x = 128,853,678,886.62
  5. Step 5: Solve for x
    x = 128,853,678,886.62/392,708.64
  6. Step 6: Final answer
    x = 328,115.21

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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.