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Finding the Fourth Proportional to 247,891.68, 342,091.20 and 134,714.88

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Solution

The fourth proportional to 247,891.68, 342,091.20 and 134,714.88 is: 185,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,891.68 : 342,091.20 = 134,714.88 : x
  2. Step 2: Convert to fraction form
    247,891.68/342,091.20 = 134,714.88/x
  3. Step 3: Cross multiply
    247,891.68x = 342,091.20 × 134,714.88
  4. Step 4: Simplify right side
    247,891.68x = 46,084,774,957.06
  5. Step 5: Solve for x
    x = 46,084,774,957.06/247,891.68
  6. Step 6: Final answer
    x = 185,906.90

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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.