Home / 396,971.68-595,456.59-172,302.98

Finding the Fourth Proportional to 396,971.68, 595,456.59 and 172,302.98

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Solution

The fourth proportional to 396,971.68, 595,456.59 and 172,302.98 is: 258,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,971.68 : 595,456.59 = 172,302.98 : x
  2. Step 2: Convert to fraction form
    396,971.68/595,456.59 = 172,302.98/x
  3. Step 3: Cross multiply
    396,971.68x = 595,456.59 × 172,302.98
  4. Step 4: Simplify right side
    396,971.68x = 102,598,944,917.64
  5. Step 5: Solve for x
    x = 102,598,944,917.64/396,971.68
  6. Step 6: Final answer
    x = 258,454.07

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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.