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Finding the Fourth Proportional to 402,233.85, 555,049.67 and 220,936.41

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Solution

The fourth proportional to 402,233.85, 555,049.67 and 220,936.41 is: 304,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,233.85 : 555,049.67 = 220,936.41 : x
  2. Step 2: Convert to fraction form
    402,233.85/555,049.67 = 220,936.41/x
  3. Step 3: Cross multiply
    402,233.85x = 555,049.67 × 220,936.41
  4. Step 4: Simplify right side
    402,233.85x = 122,630,680,356.80
  5. Step 5: Solve for x
    x = 122,630,680,356.80/402,233.85
  6. Step 6: Final answer
    x = 304,874.09

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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.