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Finding the Fourth Proportional to 229,679.65, 344,519.48 and 71,920.41

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Solution

The fourth proportional to 229,679.65, 344,519.48 and 71,920.41 is: 107,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,679.65 : 344,519.48 = 71,920.41 : x
  2. Step 2: Convert to fraction form
    229,679.65/344,519.48 = 71,920.41/x
  3. Step 3: Cross multiply
    229,679.65x = 344,519.48 × 71,920.41
  4. Step 4: Simplify right side
    229,679.65x = 24,777,980,737.89
  5. Step 5: Solve for x
    x = 24,777,980,737.89/229,679.65
  6. Step 6: Final answer
    x = 107,880.61

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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.