Home / 252,273.12-378,478.80-132,338.16

Finding the Fourth Proportional to 252,273.12, 378,478.80 and 132,338.16

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Solution

The fourth proportional to 252,273.12, 378,478.80 and 132,338.16 is: 198,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,273.12 : 378,478.80 = 132,338.16 : x
  2. Step 2: Convert to fraction form
    252,273.12/378,478.80 = 132,338.16/x
  3. Step 3: Cross multiply
    252,273.12x = 378,478.80 × 132,338.16
  4. Step 4: Simplify right side
    252,273.12x = 50,087,187,991.01
  5. Step 5: Solve for x
    x = 50,087,187,991.01/252,273.12
  6. Step 6: Final answer
    x = 198,543.50

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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.