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Finding the Fourth Proportional to 230.10, 317.52 and 131.84

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Solution

The fourth proportional to 230.10, 317.52 and 131.84 is: 181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.10 : 317.52 = 131.84 : x
  2. Step 2: Convert to fraction form
    230.10/317.52 = 131.84/x
  3. Step 3: Cross multiply
    230.10x = 317.52 × 131.84
  4. Step 4: Simplify right side
    230.10x = 41,860.55
  5. Step 5: Solve for x
    x = 41,860.55/230.10
  6. Step 6: Final answer
    x = 181.92

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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.