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Finding the Fourth Proportional to 271.17, 373.48 and 188.15

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Solution

The fourth proportional to 271.17, 373.48 and 188.15 is: 259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.17 : 373.48 = 188.15 : x
  2. Step 2: Convert to fraction form
    271.17/373.48 = 188.15/x
  3. Step 3: Cross multiply
    271.17x = 373.48 × 188.15
  4. Step 4: Simplify right side
    271.17x = 70,267.92
  5. Step 5: Solve for x
    x = 70,267.92/271.17
  6. Step 6: Final answer
    x = 259.13

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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.