Home / 302,917.12-454,375.62-81,301.12

Finding the Fourth Proportional to 302,917.12, 454,375.62 and 81,301.12

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Solution

The fourth proportional to 302,917.12, 454,375.62 and 81,301.12 is: 121,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,917.12 : 454,375.62 = 81,301.12 : x
  2. Step 2: Convert to fraction form
    302,917.12/454,375.62 = 81,301.12/x
  3. Step 3: Cross multiply
    302,917.12x = 454,375.62 × 81,301.12
  4. Step 4: Simplify right side
    302,917.12x = 36,941,246,806.69
  5. Step 5: Solve for x
    x = 36,941,246,806.69/302,917.12
  6. Step 6: Final answer
    x = 121,951.66

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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.