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Finding the Fourth Proportional to 260,067.20, 390,100.80 and 159,902.60

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Solution

The fourth proportional to 260,067.20, 390,100.80 and 159,902.60 is: 239,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,067.20 : 390,100.80 = 159,902.60 : x
  2. Step 2: Convert to fraction form
    260,067.20/390,100.80 = 159,902.60/x
  3. Step 3: Cross multiply
    260,067.20x = 390,100.80 × 159,902.60
  4. Step 4: Simplify right side
    260,067.20x = 62,378,132,182.08
  5. Step 5: Solve for x
    x = 62,378,132,182.08/260,067.20
  6. Step 6: Final answer
    x = 239,853.90

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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.