Home / 321,169.20-443,217.06-177,931.50

Finding the Fourth Proportional to 321,169.20, 443,217.06 and 177,931.50

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Solution

The fourth proportional to 321,169.20, 443,217.06 and 177,931.50 is: 245,547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,169.20 : 443,217.06 = 177,931.50 : x
  2. Step 2: Convert to fraction form
    321,169.20/443,217.06 = 177,931.50/x
  3. Step 3: Cross multiply
    321,169.20x = 443,217.06 × 177,931.50
  4. Step 4: Simplify right side
    321,169.20x = 78,862,276,311.39
  5. Step 5: Solve for x
    x = 78,862,276,311.39/321,169.20
  6. Step 6: Final answer
    x = 245,547.44

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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.