Home / 378,131.22-567,036.45-141,308.28

Finding the Fourth Proportional to 378,131.22, 567,036.45 and 141,308.28

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Solution

The fourth proportional to 378,131.22, 567,036.45 and 141,308.28 is: 211,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,131.22 : 567,036.45 = 141,308.28 : x
  2. Step 2: Convert to fraction form
    378,131.22/567,036.45 = 141,308.28/x
  3. Step 3: Cross multiply
    378,131.22x = 567,036.45 × 141,308.28
  4. Step 4: Simplify right side
    378,131.22x = 80,126,945,446.81
  5. Step 5: Solve for x
    x = 80,126,945,446.81/378,131.22
  6. Step 6: Final answer
    x = 211,902.49

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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.