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Finding the Fourth Proportional to 230.24, 317.98 and 193.69

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Solution

The fourth proportional to 230.24, 317.98 and 193.69 is: 267.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.24 : 317.98 = 193.69 : x
  2. Step 2: Convert to fraction form
    230.24/317.98 = 193.69/x
  3. Step 3: Cross multiply
    230.24x = 317.98 × 193.69
  4. Step 4: Simplify right side
    230.24x = 61,589.10
  5. Step 5: Solve for x
    x = 61,589.10/230.24
  6. Step 6: Final answer
    x = 267.50

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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.