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Finding the Fourth Proportional to 321,265.80, 443,350.52 and 178,028.24

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Solution

The fourth proportional to 321,265.80, 443,350.52 and 178,028.24 is: 245,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,265.80 : 443,350.52 = 178,028.24 : x
  2. Step 2: Convert to fraction form
    321,265.80/443,350.52 = 178,028.24/x
  3. Step 3: Cross multiply
    321,265.80x = 443,350.52 × 178,028.24
  4. Step 4: Simplify right side
    321,265.80x = 78,928,912,778.68
  5. Step 5: Solve for x
    x = 78,928,912,778.68/321,265.80
  6. Step 6: Final answer
    x = 245,681.03

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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.