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Finding the Fourth Proportional to 247,768.80, 341,908.20 and 134,591.28

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Solution

The fourth proportional to 247,768.80, 341,908.20 and 134,591.28 is: 185,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,768.80 : 341,908.20 = 134,591.28 : x
  2. Step 2: Convert to fraction form
    247,768.80/341,908.20 = 134,591.28/x
  3. Step 3: Cross multiply
    247,768.80x = 341,908.20 × 134,591.28
  4. Step 4: Simplify right side
    247,768.80x = 46,017,862,280.50
  5. Step 5: Solve for x
    x = 46,017,862,280.50/247,768.80
  6. Step 6: Final answer
    x = 185,729.04

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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.