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Finding the Fourth Proportional to 247,908.16, 342,115.32 and 134,730.88

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Solution

The fourth proportional to 247,908.16, 342,115.32 and 134,730.88 is: 185,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908.16 : 342,115.32 = 134,730.88 : x
  2. Step 2: Convert to fraction form
    247,908.16/342,115.32 = 134,730.88/x
  3. Step 3: Cross multiply
    247,908.16x = 342,115.32 × 134,730.88
  4. Step 4: Simplify right side
    247,908.16x = 46,093,498,125.08
  5. Step 5: Solve for x
    x = 46,093,498,125.08/247,908.16
  6. Step 6: Final answer
    x = 185,929.73

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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.