Home / 397,020.48-595,195.78-172,211.66

Finding the Fourth Proportional to 397,020.48, 595,195.78 and 172,211.66

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Solution

The fourth proportional to 397,020.48, 595,195.78 and 172,211.66 is: 258,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,020.48 : 595,195.78 = 172,211.66 : x
  2. Step 2: Convert to fraction form
    397,020.48/595,195.78 = 172,211.66/x
  3. Step 3: Cross multiply
    397,020.48x = 595,195.78 × 172,211.66
  4. Step 4: Simplify right side
    397,020.48x = 102,499,653,298.80
  5. Step 5: Solve for x
    x = 102,499,653,298.80/397,020.48
  6. Step 6: Final answer
    x = 258,172.21

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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.