Home / 397,020.18-595,195.38-172,211.37

Finding the Fourth Proportional to 397,020.18, 595,195.38 and 172,211.37

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Solution

The fourth proportional to 397,020.18, 595,195.38 and 172,211.37 is: 258,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,020.18 : 595,195.38 = 172,211.37 : x
  2. Step 2: Convert to fraction form
    397,020.18/595,195.38 = 172,211.37/x
  3. Step 3: Cross multiply
    397,020.18x = 595,195.38 × 172,211.37
  4. Step 4: Simplify right side
    397,020.18x = 102,499,411,807.47
  5. Step 5: Solve for x
    x = 102,499,411,807.47/397,020.18
  6. Step 6: Final answer
    x = 258,171.79

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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.