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Finding the Fourth Proportional to 194.98, 266.65 and 194.98

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Solution

The fourth proportional to 194.98, 266.65 and 194.98 is: 266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.98 : 266.65 = 194.98 : x
  2. Step 2: Convert to fraction form
    194.98/266.65 = 194.98/x
  3. Step 3: Cross multiply
    194.98x = 266.65 × 194.98
  4. Step 4: Simplify right side
    194.98x = 51,991.42
  5. Step 5: Solve for x
    x = 51,991.42/194.98
  6. Step 6: Final answer
    x = 266.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.