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Finding the Fourth Proportional to 351,200.71, 484,654.74 and 198,240.85

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Solution

The fourth proportional to 351,200.71, 484,654.74 and 198,240.85 is: 273,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,200.71 : 484,654.74 = 198,240.85 : x
  2. Step 2: Convert to fraction form
    351,200.71/484,654.74 = 198,240.85/x
  3. Step 3: Cross multiply
    351,200.71x = 484,654.74 × 198,240.85
  4. Step 4: Simplify right side
    351,200.71x = 96,078,367,614.13
  5. Step 5: Solve for x
    x = 96,078,367,614.13/351,200.71
  6. Step 6: Final answer
    x = 273,571.11

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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.