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Finding the Fourth Proportional to 271.13, 374.11 and 153.08

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Solution

The fourth proportional to 271.13, 374.11 and 153.08 is: 211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.13 : 374.11 = 153.08 : x
  2. Step 2: Convert to fraction form
    271.13/374.11 = 153.08/x
  3. Step 3: Cross multiply
    271.13x = 374.11 × 153.08
  4. Step 4: Simplify right side
    271.13x = 57,267.82
  5. Step 5: Solve for x
    x = 57,267.82/271.13
  6. Step 6: Final answer
    x = 211.22

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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.