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Finding the Fourth Proportional to 247,887.87, 342,057.44 and 140,434.89

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Solution

The fourth proportional to 247,887.87, 342,057.44 and 140,434.89 is: 193,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,887.87 : 342,057.44 = 140,434.89 : x
  2. Step 2: Convert to fraction form
    247,887.87/342,057.44 = 140,434.89/x
  3. Step 3: Cross multiply
    247,887.87x = 342,057.44 × 140,434.89
  4. Step 4: Simplify right side
    247,887.87x = 48,036,799,311.17
  5. Step 5: Solve for x
    x = 48,036,799,311.17/247,887.87
  6. Step 6: Final answer
    x = 193,784.39

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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.