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Finding the Fourth Proportional to 220,652.10, 330,981.39 and 54,440.10

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Solution

The fourth proportional to 220,652.10, 330,981.39 and 54,440.10 is: 81,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,652.10 : 330,981.39 = 54,440.10 : x
  2. Step 2: Convert to fraction form
    220,652.10/330,981.39 = 54,440.10/x
  3. Step 3: Cross multiply
    220,652.10x = 330,981.39 × 54,440.10
  4. Step 4: Simplify right side
    220,652.10x = 18,018,659,969.74
  5. Step 5: Solve for x
    x = 18,018,659,969.74/220,652.10
  6. Step 6: Final answer
    x = 81,660.95

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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.