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Finding the Fourth Proportional to 247,911.64, 342,120.72 and 134,734.44

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Solution

The fourth proportional to 247,911.64, 342,120.72 and 134,734.44 is: 185,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,911.64 : 342,120.72 = 134,734.44 : x
  2. Step 2: Convert to fraction form
    247,911.64/342,120.72 = 134,734.44/x
  3. Step 3: Cross multiply
    247,911.64x = 342,120.72 × 134,734.44
  4. Step 4: Simplify right side
    247,911.64x = 46,095,443,621.60
  5. Step 5: Solve for x
    x = 46,095,443,621.60/247,911.64
  6. Step 6: Final answer
    x = 185,934.97

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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.