Home / 321,589.28-482,402.82-108,339.50

Finding the Fourth Proportional to 321,589.28, 482,402.82 and 108,339.50

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Solution

The fourth proportional to 321,589.28, 482,402.82 and 108,339.50 is: 162,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,589.28 : 482,402.82 = 108,339.50 : x
  2. Step 2: Convert to fraction form
    321,589.28/482,402.82 = 108,339.50/x
  3. Step 3: Cross multiply
    321,589.28x = 482,402.82 × 108,339.50
  4. Step 4: Simplify right side
    321,589.28x = 52,263,280,317.39
  5. Step 5: Solve for x
    x = 52,263,280,317.39/321,589.28
  6. Step 6: Final answer
    x = 162,515.62

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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.