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Finding the Fourth Proportional to 253,917.68, 350,418.48 and 140,740.52

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Solution

The fourth proportional to 253,917.68, 350,418.48 and 140,740.52 is: 194,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,917.68 : 350,418.48 = 140,740.52 : x
  2. Step 2: Convert to fraction form
    253,917.68/350,418.48 = 140,740.52/x
  3. Step 3: Cross multiply
    253,917.68x = 350,418.48 × 140,740.52
  4. Step 4: Simplify right side
    253,917.68x = 49,318,079,092.81
  5. Step 5: Solve for x
    x = 49,318,079,092.81/253,917.68
  6. Step 6: Final answer
    x = 194,228.61

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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.