Home / 220,217.20-330,325.80-54,005.20

Finding the Fourth Proportional to 220,217.20, 330,325.80 and 54,005.20

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Solution

The fourth proportional to 220,217.20, 330,325.80 and 54,005.20 is: 81,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,217.20 : 330,325.80 = 54,005.20 : x
  2. Step 2: Convert to fraction form
    220,217.20/330,325.80 = 54,005.20/x
  3. Step 3: Cross multiply
    220,217.20x = 330,325.80 × 54,005.20
  4. Step 4: Simplify right side
    220,217.20x = 17,839,310,894.16
  5. Step 5: Solve for x
    x = 17,839,310,894.16/220,217.20
  6. Step 6: Final answer
    x = 81,007.80

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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.