Home / 220,825.71-331,336.89-80,551.53

Finding the Fourth Proportional to 220,825.71, 331,336.89 and 80,551.53

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Solution

The fourth proportional to 220,825.71, 331,336.89 and 80,551.53 is: 120,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,825.71 : 331,336.89 = 80,551.53 : x
  2. Step 2: Convert to fraction form
    220,825.71/331,336.89 = 80,551.53/x
  3. Step 3: Cross multiply
    220,825.71x = 331,336.89 × 80,551.53
  4. Step 4: Simplify right side
    220,825.71x = 26,689,693,434.94
  5. Step 5: Solve for x
    x = 26,689,693,434.94/220,825.71
  6. Step 6: Final answer
    x = 120,863.16

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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.