Home / 321,206.40-443,273.58-177,982.20

Finding the Fourth Proportional to 321,206.40, 443,273.58 and 177,982.20

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Solution

The fourth proportional to 321,206.40, 443,273.58 and 177,982.20 is: 245,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,206.40 : 443,273.58 = 177,982.20 : x
  2. Step 2: Convert to fraction form
    321,206.40/443,273.58 = 177,982.20/x
  3. Step 3: Cross multiply
    321,206.40x = 443,273.58 × 177,982.20
  4. Step 4: Simplify right side
    321,206.40x = 78,894,806,970.28
  5. Step 5: Solve for x
    x = 78,894,806,970.28/321,206.40
  6. Step 6: Final answer
    x = 245,620.28

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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.