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Finding the Fourth Proportional to 193.07, 266.76 and 191.15

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Solution

The fourth proportional to 193.07, 266.76 and 191.15 is: 264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.07 : 266.76 = 191.15 : x
  2. Step 2: Convert to fraction form
    193.07/266.76 = 191.15/x
  3. Step 3: Cross multiply
    193.07x = 266.76 × 191.15
  4. Step 4: Simplify right side
    193.07x = 50,991.17
  5. Step 5: Solve for x
    x = 50,991.17/193.07
  6. Step 6: Final answer
    x = 264.11

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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.