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Finding the Fourth Proportional to 271.33, 406.76 and 230.47

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Solution

The fourth proportional to 271.33, 406.76 and 230.47 is: 345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.33 : 406.76 = 230.47 : x
  2. Step 2: Convert to fraction form
    271.33/406.76 = 230.47/x
  3. Step 3: Cross multiply
    271.33x = 406.76 × 230.47
  4. Step 4: Simplify right side
    271.33x = 93,742.79
  5. Step 5: Solve for x
    x = 93,742.79/271.33
  6. Step 6: Final answer
    x = 345.50

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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.