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Finding the Fourth Proportional to 271.10, 404.32 and 245.18

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Solution

The fourth proportional to 271.10, 404.32 and 245.18 is: 365.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.10 : 404.32 = 245.18 : x
  2. Step 2: Convert to fraction form
    271.10/404.32 = 245.18/x
  3. Step 3: Cross multiply
    271.10x = 404.32 × 245.18
  4. Step 4: Simplify right side
    271.10x = 99,131.18
  5. Step 5: Solve for x
    x = 99,131.18/271.10
  6. Step 6: Final answer
    x = 365.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.