Home / 322,131.20-482,966.40-144,492.80

Finding the Fourth Proportional to 322,131.20, 482,966.40 and 144,492.80

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Solution

The fourth proportional to 322,131.20, 482,966.40 and 144,492.80 is: 216,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,131.20 : 482,966.40 = 144,492.80 : x
  2. Step 2: Convert to fraction form
    322,131.20/482,966.40 = 144,492.80/x
  3. Step 3: Cross multiply
    322,131.20x = 482,966.40 × 144,492.80
  4. Step 4: Simplify right side
    322,131.20x = 69,785,167,441.92
  5. Step 5: Solve for x
    x = 69,785,167,441.92/322,131.20
  6. Step 6: Final answer
    x = 216,635.85

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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.