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Finding the Fourth Proportional to 220,579.69, 330,869.57 and 54,367.69

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Solution

The fourth proportional to 220,579.69, 330,869.57 and 54,367.69 is: 81,551.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,579.69 : 330,869.57 = 54,367.69 : x
  2. Step 2: Convert to fraction form
    220,579.69/330,869.57 = 54,367.69/x
  3. Step 3: Cross multiply
    220,579.69x = 330,869.57 × 54,367.69
  4. Step 4: Simplify right side
    220,579.69x = 17,988,614,212.19
  5. Step 5: Solve for x
    x = 17,988,614,212.19/220,579.69
  6. Step 6: Final answer
    x = 81,551.54

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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.