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Finding the Fourth Proportional to 252,278.01, 377,661.42 and 243,305.78

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Solution

The fourth proportional to 252,278.01, 377,661.42 and 243,305.78 is: 364,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,278.01 : 377,661.42 = 243,305.78 : x
  2. Step 2: Convert to fraction form
    252,278.01/377,661.42 = 243,305.78/x
  3. Step 3: Cross multiply
    252,278.01x = 377,661.42 × 243,305.78
  4. Step 4: Simplify right side
    252,278.01x = 91,887,204,480.70
  5. Step 5: Solve for x
    x = 91,887,204,480.70/252,278.01
  6. Step 6: Final answer
    x = 364,229.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.