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Finding the Fourth Proportional to 220,101.39, 330,199.41 and 68,295.31

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Solution

The fourth proportional to 220,101.39, 330,199.41 and 68,295.31 is: 102,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,101.39 : 330,199.41 = 68,295.31 : x
  2. Step 2: Convert to fraction form
    220,101.39/330,199.41 = 68,295.31/x
  3. Step 3: Cross multiply
    220,101.39x = 330,199.41 × 68,295.31
  4. Step 4: Simplify right side
    220,101.39x = 22,551,071,583.24
  5. Step 5: Solve for x
    x = 22,551,071,583.24/220,101.39
  6. Step 6: Final answer
    x = 102,457.65

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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.