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Finding the Fourth Proportional to 223,727.82, 308,674.89 and 126,915.72

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Solution

The fourth proportional to 223,727.82, 308,674.89 and 126,915.72 is: 175,104.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,727.82 : 308,674.89 = 126,915.72 : x
  2. Step 2: Convert to fraction form
    223,727.82/308,674.89 = 126,915.72/x
  3. Step 3: Cross multiply
    223,727.82x = 308,674.89 × 126,915.72
  4. Step 4: Simplify right side
    223,727.82x = 39,175,695,910.27
  5. Step 5: Solve for x
    x = 39,175,695,910.27/223,727.82
  6. Step 6: Final answer
    x = 175,104.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.