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Finding the Fourth Proportional to 260,023.70, 389,920.35 and 119,825.30

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Solution

The fourth proportional to 260,023.70, 389,920.35 and 119,825.30 is: 179,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,023.70 : 389,920.35 = 119,825.30 : x
  2. Step 2: Convert to fraction form
    260,023.70/389,920.35 = 119,825.30/x
  3. Step 3: Cross multiply
    260,023.70x = 389,920.35 × 119,825.30
  4. Step 4: Simplify right side
    260,023.70x = 46,722,322,914.86
  5. Step 5: Solve for x
    x = 46,722,322,914.86/260,023.70
  6. Step 6: Final answer
    x = 179,684.86

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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.