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Finding the Fourth Proportional to 247,908.44, 342,112.70 and 140,498.79

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Solution

The fourth proportional to 247,908.44, 342,112.70 and 140,498.79 is: 193,887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908.44 : 342,112.70 = 140,498.79 : x
  2. Step 2: Convert to fraction form
    247,908.44/342,112.70 = 140,498.79/x
  3. Step 3: Cross multiply
    247,908.44x = 342,112.70 × 140,498.79
  4. Step 4: Simplify right side
    247,908.44x = 48,066,419,691.14
  5. Step 5: Solve for x
    x = 48,066,419,691.14/247,908.44
  6. Step 6: Final answer
    x = 193,887.79

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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.