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Finding the Fourth Proportional to 230,340.31, 345,559.66 and 80,585.48

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Solution

The fourth proportional to 230,340.31, 345,559.66 and 80,585.48 is: 120,895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,340.31 : 345,559.66 = 80,585.48 : x
  2. Step 2: Convert to fraction form
    230,340.31/345,559.66 = 80,585.48/x
  3. Step 3: Cross multiply
    230,340.31x = 345,559.66 × 80,585.48
  4. Step 4: Simplify right side
    230,340.31x = 27,847,091,732.17
  5. Step 5: Solve for x
    x = 27,847,091,732.17/230,340.31
  6. Step 6: Final answer
    x = 120,895.44

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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.