Home / 373,288.28-515,122.98-220,375.72

Finding the Fourth Proportional to 373,288.28, 515,122.98 and 220,375.72

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Solution

The fourth proportional to 373,288.28, 515,122.98 and 220,375.72 is: 304,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,288.28 : 515,122.98 = 220,375.72 : x
  2. Step 2: Convert to fraction form
    373,288.28/515,122.98 = 220,375.72/x
  3. Step 3: Cross multiply
    373,288.28x = 515,122.98 × 220,375.72
  4. Step 4: Simplify right side
    373,288.28x = 113,520,597,606.05
  5. Step 5: Solve for x
    x = 113,520,597,606.05/373,288.28
  6. Step 6: Final answer
    x = 304,109.73

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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.