Home / 220,569.45-330,963.57-87,446.76

Finding the Fourth Proportional to 220,569.45, 330,963.57 and 87,446.76

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Solution

The fourth proportional to 220,569.45, 330,963.57 and 87,446.76 is: 131,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,569.45 : 330,963.57 = 87,446.76 : x
  2. Step 2: Convert to fraction form
    220,569.45/330,963.57 = 87,446.76/x
  3. Step 3: Cross multiply
    220,569.45x = 330,963.57 × 87,446.76
  4. Step 4: Simplify right side
    220,569.45x = 28,941,691,874.53
  5. Step 5: Solve for x
    x = 28,941,691,874.53/220,569.45
  6. Step 6: Final answer
    x = 131,213.51

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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.