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Finding the Fourth Proportional to 398,665.33, 550,204.83 and 226,609.18

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Solution

The fourth proportional to 398,665.33, 550,204.83 and 226,609.18 is: 312,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,665.33 : 550,204.83 = 226,609.18 : x
  2. Step 2: Convert to fraction form
    398,665.33/550,204.83 = 226,609.18/x
  3. Step 3: Cross multiply
    398,665.33x = 550,204.83 × 226,609.18
  4. Step 4: Simplify right side
    398,665.33x = 124,681,465,358.34
  5. Step 5: Solve for x
    x = 124,681,465,358.34/398,665.33
  6. Step 6: Final answer
    x = 312,747.20

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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.