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Finding the Fourth Proportional to 229,888.78, 344,891.49 and 72,118.60

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Solution

The fourth proportional to 229,888.78, 344,891.49 and 72,118.60 is: 108,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,888.78 : 344,891.49 = 72,118.60 : x
  2. Step 2: Convert to fraction form
    229,888.78/344,891.49 = 72,118.60/x
  3. Step 3: Cross multiply
    229,888.78x = 344,891.49 × 72,118.60
  4. Step 4: Simplify right side
    229,888.78x = 24,873,092,826.56
  5. Step 5: Solve for x
    x = 24,873,092,826.56/229,888.78
  6. Step 6: Final answer
    x = 108,196.20

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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.