Home / 209,515.44-288,930.31-140,760.25

Finding the Fourth Proportional to 209,515.44, 288,930.31 and 140,760.25

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Solution

The fourth proportional to 209,515.44, 288,930.31 and 140,760.25 is: 194,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,515.44 : 288,930.31 = 140,760.25 : x
  2. Step 2: Convert to fraction form
    209,515.44/288,930.31 = 140,760.25/x
  3. Step 3: Cross multiply
    209,515.44x = 288,930.31 × 140,760.25
  4. Step 4: Simplify right side
    209,515.44x = 40,669,901,593.95
  5. Step 5: Solve for x
    x = 40,669,901,593.95/209,515.44
  6. Step 6: Final answer
    x = 194,114.10

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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.