Home / 321,139.32-443,197.26-177,912.60

Finding the Fourth Proportional to 321,139.32, 443,197.26 and 177,912.60

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Solution

The fourth proportional to 321,139.32, 443,197.26 and 177,912.60 is: 245,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,139.32 : 443,197.26 = 177,912.60 : x
  2. Step 2: Convert to fraction form
    321,139.32/443,197.26 = 177,912.60/x
  3. Step 3: Cross multiply
    321,139.32x = 443,197.26 × 177,912.60
  4. Step 4: Simplify right side
    321,139.32x = 78,850,376,839.48
  5. Step 5: Solve for x
    x = 78,850,376,839.48/321,139.32
  6. Step 6: Final answer
    x = 245,533.24

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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.