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Finding the Fourth Proportional to 195.09, 266.72 and 187.53

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Solution

The fourth proportional to 195.09, 266.72 and 187.53 is: 256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.09 : 266.72 = 187.53 : x
  2. Step 2: Convert to fraction form
    195.09/266.72 = 187.53/x
  3. Step 3: Cross multiply
    195.09x = 266.72 × 187.53
  4. Step 4: Simplify right side
    195.09x = 50,017.06
  5. Step 5: Solve for x
    x = 50,017.06/195.09
  6. Step 6: Final answer
    x = 256.38

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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.