Home / 252,221.04-378,391.50-72,308.70

Finding the Fourth Proportional to 252,221.04, 378,391.50 and 72,308.70

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Solution

The fourth proportional to 252,221.04, 378,391.50 and 72,308.70 is: 108,480.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,221.04 : 378,391.50 = 72,308.70 : x
  2. Step 2: Convert to fraction form
    252,221.04/378,391.50 = 72,308.70/x
  3. Step 3: Cross multiply
    252,221.04x = 378,391.50 × 72,308.70
  4. Step 4: Simplify right side
    252,221.04x = 27,360,997,456.05
  5. Step 5: Solve for x
    x = 27,360,997,456.05/252,221.04
  6. Step 6: Final answer
    x = 108,480.23

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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.