Home / 260,976.76-391,185.30-170,985.49

Finding the Fourth Proportional to 260,976.76, 391,185.30 and 170,985.49

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Solution

The fourth proportional to 260,976.76, 391,185.30 and 170,985.49 is: 256,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,976.76 : 391,185.30 = 170,985.49 : x
  2. Step 2: Convert to fraction form
    260,976.76/391,185.30 = 170,985.49/x
  3. Step 3: Cross multiply
    260,976.76x = 391,185.30 × 170,985.49
  4. Step 4: Simplify right side
    260,976.76x = 66,887,010,201.30
  5. Step 5: Solve for x
    x = 66,887,010,201.30/260,976.76
  6. Step 6: Final answer
    x = 256,294.89

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1.5x scale

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.