Home / 209,275.20-288,791.88-113,778.60

Finding the Fourth Proportional to 209,275.20, 288,791.88 and 113,778.60

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Solution

The fourth proportional to 209,275.20, 288,791.88 and 113,778.60 is: 157,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,275.20 : 288,791.88 = 113,778.60 : x
  2. Step 2: Convert to fraction form
    209,275.20/288,791.88 = 113,778.60/x
  3. Step 3: Cross multiply
    209,275.20x = 288,791.88 × 113,778.60
  4. Step 4: Simplify right side
    209,275.20x = 32,858,335,797.77
  5. Step 5: Solve for x
    x = 32,858,335,797.77/209,275.20
  6. Step 6: Final answer
    x = 157,010.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.