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Finding the Fourth Proportional to 247,881.42, 342,049.50 and 140,449.50

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Solution

The fourth proportional to 247,881.42, 342,049.50 and 140,449.50 is: 193,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,881.42 : 342,049.50 = 140,449.50 : x
  2. Step 2: Convert to fraction form
    247,881.42/342,049.50 = 140,449.50/x
  3. Step 3: Cross multiply
    247,881.42x = 342,049.50 × 140,449.50
  4. Step 4: Simplify right side
    247,881.42x = 48,040,681,250.25
  5. Step 5: Solve for x
    x = 48,040,681,250.25/247,881.42
  6. Step 6: Final answer
    x = 193,805.09

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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.