Home / 397,020.68-595,196.12-172,211.88

Finding the Fourth Proportional to 397,020.68, 595,196.12 and 172,211.88

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Solution

The fourth proportional to 397,020.68, 595,196.12 and 172,211.88 is: 258,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,020.68 : 595,196.12 = 172,211.88 : x
  2. Step 2: Convert to fraction form
    397,020.68/595,196.12 = 172,211.88/x
  3. Step 3: Cross multiply
    397,020.68x = 595,196.12 × 172,211.88
  4. Step 4: Simplify right side
    397,020.68x = 102,499,842,793.91
  5. Step 5: Solve for x
    x = 102,499,842,793.91/397,020.68
  6. Step 6: Final answer
    x = 258,172.55

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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.