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Finding the Fourth Proportional to 260,759.52, 391,325.76 and 111,104.64

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Solution

The fourth proportional to 260,759.52, 391,325.76 and 111,104.64 is: 166,736.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,759.52 : 391,325.76 = 111,104.64 : x
  2. Step 2: Convert to fraction form
    260,759.52/391,325.76 = 111,104.64/x
  3. Step 3: Cross multiply
    260,759.52x = 391,325.76 × 111,104.64
  4. Step 4: Simplify right side
    260,759.52x = 43,478,107,687.53
  5. Step 5: Solve for x
    x = 43,478,107,687.53/260,759.52
  6. Step 6: Final answer
    x = 166,736.42

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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.