Home / 318,049.74-438,912.03-172,855.52

Finding the Fourth Proportional to 318,049.74, 438,912.03 and 172,855.52

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Solution

The fourth proportional to 318,049.74, 438,912.03 and 172,855.52 is: 238,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,049.74 : 438,912.03 = 172,855.52 : x
  2. Step 2: Convert to fraction form
    318,049.74/438,912.03 = 172,855.52/x
  3. Step 3: Cross multiply
    318,049.74x = 438,912.03 × 172,855.52
  4. Step 4: Simplify right side
    318,049.74x = 75,868,367,179.91
  5. Step 5: Solve for x
    x = 75,868,367,179.91/318,049.74
  6. Step 6: Final answer
    x = 238,542.46

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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.