Home / 253,008.20-379,205.10-112,617.80

Finding the Fourth Proportional to 253,008.20, 379,205.10 and 112,617.80

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Solution

The fourth proportional to 253,008.20, 379,205.10 and 112,617.80 is: 168,789.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,008.20 : 379,205.10 = 112,617.80 : x
  2. Step 2: Convert to fraction form
    253,008.20/379,205.10 = 112,617.80/x
  3. Step 3: Cross multiply
    253,008.20x = 379,205.10 × 112,617.80
  4. Step 4: Simplify right side
    253,008.20x = 42,705,244,110.78
  5. Step 5: Solve for x
    x = 42,705,244,110.78/253,008.20
  6. Step 6: Final answer
    x = 168,789.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.