Home / 252,228.25-378,343.75-74,736.80

Finding the Fourth Proportional to 252,228.25, 378,343.75 and 74,736.80

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Solution

The fourth proportional to 252,228.25, 378,343.75 and 74,736.80 is: 112,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,228.25 : 378,343.75 = 74,736.80 : x
  2. Step 2: Convert to fraction form
    252,228.25/378,343.75 = 74,736.80/x
  3. Step 3: Cross multiply
    252,228.25x = 378,343.75 × 74,736.80
  4. Step 4: Simplify right side
    252,228.25x = 28,276,201,614.35
  5. Step 5: Solve for x
    x = 28,276,201,614.35/252,228.25
  6. Step 6: Final answer
    x = 112,105.61

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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.