Home / 252,003.47-378,079.05-74,515.10

Finding the Fourth Proportional to 252,003.47, 378,079.05 and 74,515.10

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Solution

The fourth proportional to 252,003.47, 378,079.05 and 74,515.10 is: 111,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,003.47 : 378,079.05 = 74,515.10 : x
  2. Step 2: Convert to fraction form
    252,003.47/378,079.05 = 74,515.10/x
  3. Step 3: Cross multiply
    252,003.47x = 378,079.05 × 74,515.10
  4. Step 4: Simplify right side
    252,003.47x = 28,172,598,218.66
  5. Step 5: Solve for x
    x = 28,172,598,218.66/252,003.47
  6. Step 6: Final answer
    x = 111,794.49

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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.