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Finding the Fourth Proportional to 260,026.60, 389,780.70 and 119,540.20

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Solution

The fourth proportional to 260,026.60, 389,780.70 and 119,540.20 is: 179,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,026.60 : 389,780.70 = 119,540.20 : x
  2. Step 2: Convert to fraction form
    260,026.60/389,780.70 = 119,540.20/x
  3. Step 3: Cross multiply
    260,026.60x = 389,780.70 × 119,540.20
  4. Step 4: Simplify right side
    260,026.60x = 46,594,462,834.14
  5. Step 5: Solve for x
    x = 46,594,462,834.14/260,026.60
  6. Step 6: Final answer
    x = 179,191.14

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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.