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Finding the Fourth Proportional to 271.86, 374.98 and 193.16

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Solution

The fourth proportional to 271.86, 374.98 and 193.16 is: 266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.86 : 374.98 = 193.16 : x
  2. Step 2: Convert to fraction form
    271.86/374.98 = 193.16/x
  3. Step 3: Cross multiply
    271.86x = 374.98 × 193.16
  4. Step 4: Simplify right side
    271.86x = 72,430.90
  5. Step 5: Solve for x
    x = 72,430.90/271.86
  6. Step 6: Final answer
    x = 266.43

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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.