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Finding the Fourth Proportional to 230,644.69, 345,964.95 and 72,873.13

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Solution

The fourth proportional to 230,644.69, 345,964.95 and 72,873.13 is: 109,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,644.69 : 345,964.95 = 72,873.13 : x
  2. Step 2: Convert to fraction form
    230,644.69/345,964.95 = 72,873.13/x
  3. Step 3: Cross multiply
    230,644.69x = 345,964.95 × 72,873.13
  4. Step 4: Simplify right side
    230,644.69x = 25,211,548,776.79
  5. Step 5: Solve for x
    x = 25,211,548,776.79/230,644.69
  6. Step 6: Final answer
    x = 109,309.04

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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.