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Finding the Fourth Proportional to 252,347.77, 378,463.24 and 74,811.97

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Solution

The fourth proportional to 252,347.77, 378,463.24 and 74,811.97 is: 112,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,347.77 : 378,463.24 = 74,811.97 : x
  2. Step 2: Convert to fraction form
    252,347.77/378,463.24 = 74,811.97/x
  3. Step 3: Cross multiply
    252,347.77x = 378,463.24 × 74,811.97
  4. Step 4: Simplify right side
    252,347.77x = 28,313,580,556.98
  5. Step 5: Solve for x
    x = 28,313,580,556.98/252,347.77
  6. Step 6: Final answer
    x = 112,200.64

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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.