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Finding the Fourth Proportional to 271.04, 374.04 and 153.05

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Solution

The fourth proportional to 271.04, 374.04 and 153.05 is: 211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.04 : 374.04 = 153.05 : x
  2. Step 2: Convert to fraction form
    271.04/374.04 = 153.05/x
  3. Step 3: Cross multiply
    271.04x = 374.04 × 153.05
  4. Step 4: Simplify right side
    271.04x = 57,244.95
  5. Step 5: Solve for x
    x = 57,244.95/271.04
  6. Step 6: Final answer
    x = 211.21

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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.