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Finding the Fourth Proportional to 230,068.44, 345,185.70 and 80,330.79

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Solution

The fourth proportional to 230,068.44, 345,185.70 and 80,330.79 is: 120,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,068.44 : 345,185.70 = 80,330.79 : x
  2. Step 2: Convert to fraction form
    230,068.44/345,185.70 = 80,330.79/x
  3. Step 3: Cross multiply
    230,068.44x = 345,185.70 × 80,330.79
  4. Step 4: Simplify right side
    230,068.44x = 27,729,039,977.70
  5. Step 5: Solve for x
    x = 27,729,039,977.70/230,068.44
  6. Step 6: Final answer
    x = 120,525.18

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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.