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Finding the Fourth Proportional to 220,559.41, 330,871.92 and 102,242.71

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Solution

The fourth proportional to 220,559.41, 330,871.92 and 102,242.71 is: 153,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,559.41 : 330,871.92 = 102,242.71 : x
  2. Step 2: Convert to fraction form
    220,559.41/330,871.92 = 102,242.71/x
  3. Step 3: Cross multiply
    220,559.41x = 330,871.92 × 102,242.71
  4. Step 4: Simplify right side
    220,559.41x = 33,829,241,763.70
  5. Step 5: Solve for x
    x = 33,829,241,763.70/220,559.41
  6. Step 6: Final answer
    x = 153,379.27

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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.