Home / 321,727.24-482,723.30-111,512.80

Finding the Fourth Proportional to 321,727.24, 482,723.30 and 111,512.80

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Solution

The fourth proportional to 321,727.24, 482,723.30 and 111,512.80 is: 167,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,727.24 : 482,723.30 = 111,512.80 : x
  2. Step 2: Convert to fraction form
    321,727.24/482,723.30 = 111,512.80/x
  3. Step 3: Cross multiply
    321,727.24x = 482,723.30 × 111,512.80
  4. Step 4: Simplify right side
    321,727.24x = 53,829,826,808.24
  5. Step 5: Solve for x
    x = 53,829,826,808.24/321,727.24
  6. Step 6: Final answer
    x = 167,315.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.