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Finding the Fourth Proportional to 247,951.20, 342,260.40 and 147,348

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Solution

The fourth proportional to 247,951.20, 342,260.40 and 147,348 is: 203,392.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,951.20 : 342,260.40 = 147,348 : x
  2. Step 2: Convert to fraction form
    247,951.20/342,260.40 = 147,348/x
  3. Step 3: Cross multiply
    247,951.20x = 342,260.40 × 147,348
  4. Step 4: Simplify right side
    247,951.20x = 50,431,385,419.20
  5. Step 5: Solve for x
    x = 50,431,385,419.20/247,951.20
  6. Step 6: Final answer
    x = 203,392.38

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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.