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Finding the Fourth Proportional to 344,251.52, 516,377.28 and 122,480

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Solution

The fourth proportional to 344,251.52, 516,377.28 and 122,480 is: 183,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,251.52 : 516,377.28 = 122,480 : x
  2. Step 2: Convert to fraction form
    344,251.52/516,377.28 = 122,480/x
  3. Step 3: Cross multiply
    344,251.52x = 516,377.28 × 122,480
  4. Step 4: Simplify right side
    344,251.52x = 63,245,889,254.40
  5. Step 5: Solve for x
    x = 63,245,889,254.40/344,251.52
  6. Step 6: Final answer
    x = 183,720

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.