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Finding the Fourth Proportional to 271.37, 374.49 and 147.03

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Solution

The fourth proportional to 271.37, 374.49 and 147.03 is: 202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.37 : 374.49 = 147.03 : x
  2. Step 2: Convert to fraction form
    271.37/374.49 = 147.03/x
  3. Step 3: Cross multiply
    271.37x = 374.49 × 147.03
  4. Step 4: Simplify right side
    271.37x = 55,060.39
  5. Step 5: Solve for x
    x = 55,060.39/271.37
  6. Step 6: Final answer
    x = 202.90

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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.