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Finding the Fourth Proportional to 260,047.90, 389,764.65 and 110,287.90

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Solution

The fourth proportional to 260,047.90, 389,764.65 and 110,287.90 is: 165,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,047.90 : 389,764.65 = 110,287.90 : x
  2. Step 2: Convert to fraction form
    260,047.90/389,764.65 = 110,287.90/x
  3. Step 3: Cross multiply
    260,047.90x = 389,764.65 × 110,287.90
  4. Step 4: Simplify right side
    260,047.90x = 42,986,324,742.74
  5. Step 5: Solve for x
    x = 42,986,324,742.74/260,047.90
  6. Step 6: Final answer
    x = 165,301.56

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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.