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Finding the Fourth Proportional to 398,609.92, 550,057.98 and 226,504.00

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Solution

The fourth proportional to 398,609.92, 550,057.98 and 226,504.00 is: 312,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,609.92 : 550,057.98 = 226,504.00 : x
  2. Step 2: Convert to fraction form
    398,609.92/550,057.98 = 226,504.00/x
  3. Step 3: Cross multiply
    398,609.92x = 550,057.98 × 226,504.00
  4. Step 4: Simplify right side
    398,609.92x = 124,590,331,326.78
  5. Step 5: Solve for x
    x = 124,590,331,326.78/398,609.92
  6. Step 6: Final answer
    x = 312,562.05

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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.