Home / 209,375.60-288,912.08-141,540.16

Finding the Fourth Proportional to 209,375.60, 288,912.08 and 141,540.16

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Solution

The fourth proportional to 209,375.60, 288,912.08 and 141,540.16 is: 195,307.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,375.60 : 288,912.08 = 141,540.16 : x
  2. Step 2: Convert to fraction form
    209,375.60/288,912.08 = 141,540.16/x
  3. Step 3: Cross multiply
    209,375.60x = 288,912.08 × 141,540.16
  4. Step 4: Simplify right side
    209,375.60x = 40,892,662,029.13
  5. Step 5: Solve for x
    x = 40,892,662,029.13/209,375.60
  6. Step 6: Final answer
    x = 195,307.68

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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.