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Finding the Fourth Proportional to 231.18, 347.49 and 183.30

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Solution

The fourth proportional to 231.18, 347.49 and 183.30 is: 275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.18 : 347.49 = 183.30 : x
  2. Step 2: Convert to fraction form
    231.18/347.49 = 183.30/x
  3. Step 3: Cross multiply
    231.18x = 347.49 × 183.30
  4. Step 4: Simplify right side
    231.18x = 63,694.92
  5. Step 5: Solve for x
    x = 63,694.92/231.18
  6. Step 6: Final answer
    x = 275.52

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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.