Home / 398,887.08-550,454.52-229,132.12

Finding the Fourth Proportional to 398,887.08, 550,454.52 and 229,132.12

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Solution

The fourth proportional to 398,887.08, 550,454.52 and 229,132.12 is: 316,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,887.08 : 550,454.52 = 229,132.12 : x
  2. Step 2: Convert to fraction form
    398,887.08/550,454.52 = 229,132.12/x
  3. Step 3: Cross multiply
    398,887.08x = 550,454.52 × 229,132.12
  4. Step 4: Simplify right side
    398,887.08x = 126,126,811,131.18
  5. Step 5: Solve for x
    x = 126,126,811,131.18/398,887.08
  6. Step 6: Final answer
    x = 316,196.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.