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Finding the Fourth Proportional to 247,591.95, 341,678.30 and 145,621.70

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Solution

The fourth proportional to 247,591.95, 341,678.30 and 145,621.70 is: 200,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,591.95 : 341,678.30 = 145,621.70 : x
  2. Step 2: Convert to fraction form
    247,591.95/341,678.30 = 145,621.70/x
  3. Step 3: Cross multiply
    247,591.95x = 341,678.30 × 145,621.70
  4. Step 4: Simplify right side
    247,591.95x = 49,755,772,462.61
  5. Step 5: Solve for x
    x = 49,755,772,462.61/247,591.95
  6. Step 6: Final answer
    x = 200,958.76

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1.5x scale

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.