Home / 321,269.06-443,362.74-193,919.78

Finding the Fourth Proportional to 321,269.06, 443,362.74 and 193,919.78

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Solution

The fourth proportional to 321,269.06, 443,362.74 and 193,919.78 is: 267,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,269.06 : 443,362.74 = 193,919.78 : x
  2. Step 2: Convert to fraction form
    321,269.06/443,362.74 = 193,919.78/x
  3. Step 3: Cross multiply
    321,269.06x = 443,362.74 × 193,919.78
  4. Step 4: Simplify right side
    321,269.06x = 85,976,805,001.00
  5. Step 5: Solve for x
    x = 85,976,805,001.00/321,269.06
  6. Step 6: Final answer
    x = 267,616.20

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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.