Home / 260,023.60-389,743.80-110,238.40

Finding the Fourth Proportional to 260,023.60, 389,743.80 and 110,238.40

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Solution

The fourth proportional to 260,023.60, 389,743.80 and 110,238.40 is: 165,233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,023.60 : 389,743.80 = 110,238.40 : x
  2. Step 2: Convert to fraction form
    260,023.60/389,743.80 = 110,238.40/x
  3. Step 3: Cross multiply
    260,023.60x = 389,743.80 × 110,238.40
  4. Step 4: Simplify right side
    260,023.60x = 42,964,732,921.92
  5. Step 5: Solve for x
    x = 42,964,732,921.92/260,023.60
  6. Step 6: Final answer
    x = 165,233.97

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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.