Home / 209,375.59-288,912.13-141,540.12

Finding the Fourth Proportional to 209,375.59, 288,912.13 and 141,540.12

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Solution

The fourth proportional to 209,375.59, 288,912.13 and 141,540.12 is: 195,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,375.59 : 288,912.13 = 141,540.12 : x
  2. Step 2: Convert to fraction form
    209,375.59/288,912.13 = 141,540.12/x
  3. Step 3: Cross multiply
    209,375.59x = 288,912.13 × 141,540.12
  4. Step 4: Simplify right side
    209,375.59x = 40,892,657,549.66
  5. Step 5: Solve for x
    x = 40,892,657,549.66/209,375.59
  6. Step 6: Final answer
    x = 195,307.66

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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.