Home / 261,048.20-391,572.30-219,713.90

Finding the Fourth Proportional to 261,048.20, 391,572.30 and 219,713.90

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Solution

The fourth proportional to 261,048.20, 391,572.30 and 219,713.90 is: 329,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,048.20 : 391,572.30 = 219,713.90 : x
  2. Step 2: Convert to fraction form
    261,048.20/391,572.30 = 219,713.90/x
  3. Step 3: Cross multiply
    261,048.20x = 391,572.30 × 219,713.90
  4. Step 4: Simplify right side
    261,048.20x = 86,033,877,164.97
  5. Step 5: Solve for x
    x = 86,033,877,164.97/261,048.20
  6. Step 6: Final answer
    x = 329,570.85

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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.