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Finding the Fourth Proportional to 271.55, 374.53 and 230.33

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Solution

The fourth proportional to 271.55, 374.53 and 230.33 is: 317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.55 : 374.53 = 230.33 : x
  2. Step 2: Convert to fraction form
    271.55/374.53 = 230.33/x
  3. Step 3: Cross multiply
    271.55x = 374.53 × 230.33
  4. Step 4: Simplify right side
    271.55x = 86,265.49
  5. Step 5: Solve for x
    x = 86,265.49/271.55
  6. Step 6: Final answer
    x = 317.68

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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.