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Finding the Fourth Proportional to 260,119.60, 389,920.20 and 119,633.20

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Solution

The fourth proportional to 260,119.60, 389,920.20 and 119,633.20 is: 179,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,119.60 : 389,920.20 = 119,633.20 : x
  2. Step 2: Convert to fraction form
    260,119.60/389,920.20 = 119,633.20/x
  3. Step 3: Cross multiply
    260,119.60x = 389,920.20 × 119,633.20
  4. Step 4: Simplify right side
    260,119.60x = 46,647,401,270.64
  5. Step 5: Solve for x
    x = 46,647,401,270.64/260,119.60
  6. Step 6: Final answer
    x = 179,330.59

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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.