Home / 261,162.03-391,743.17-172,394.79

Finding the Fourth Proportional to 261,162.03, 391,743.17 and 172,394.79

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Solution

The fourth proportional to 261,162.03, 391,743.17 and 172,394.79 is: 258,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,162.03 : 391,743.17 = 172,394.79 : x
  2. Step 2: Convert to fraction form
    261,162.03/391,743.17 = 172,394.79/x
  3. Step 3: Cross multiply
    261,162.03x = 391,743.17 × 172,394.79
  4. Step 4: Simplify right side
    261,162.03x = 67,534,481,526.08
  5. Step 5: Solve for x
    x = 67,534,481,526.08/261,162.03
  6. Step 6: Final answer
    x = 258,592.27

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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.