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Finding the Fourth Proportional to 351,377.52, 484,914.78 and 198,447.90

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Solution

The fourth proportional to 351,377.52, 484,914.78 and 198,447.90 is: 273,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,377.52 : 484,914.78 = 198,447.90 : x
  2. Step 2: Convert to fraction form
    351,377.52/484,914.78 = 198,447.90/x
  3. Step 3: Cross multiply
    351,377.52x = 484,914.78 × 198,447.90
  4. Step 4: Simplify right side
    351,377.52x = 96,230,319,769.96
  5. Step 5: Solve for x
    x = 96,230,319,769.96/351,377.52
  6. Step 6: Final answer
    x = 273,865.90

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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.