Home / 398,648.28-550,181.33-226,592.13

Finding the Fourth Proportional to 398,648.28, 550,181.33 and 226,592.13

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Solution

The fourth proportional to 398,648.28, 550,181.33 and 226,592.13 is: 312,723.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,648.28 : 550,181.33 = 226,592.13 : x
  2. Step 2: Convert to fraction form
    398,648.28/550,181.33 = 226,592.13/x
  3. Step 3: Cross multiply
    398,648.28x = 550,181.33 × 226,592.13
  4. Step 4: Simplify right side
    398,648.28x = 124,666,761,230.87
  5. Step 5: Solve for x
    x = 124,666,761,230.87/398,648.28
  6. Step 6: Final answer
    x = 312,723.69

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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.