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Finding the Fourth Proportional to 193.23, 266.67 and 137.93

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Solution

The fourth proportional to 193.23, 266.67 and 137.93 is: 190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.23 : 266.67 = 137.93 : x
  2. Step 2: Convert to fraction form
    193.23/266.67 = 137.93/x
  3. Step 3: Cross multiply
    193.23x = 266.67 × 137.93
  4. Step 4: Simplify right side
    193.23x = 36,780.46
  5. Step 5: Solve for x
    x = 36,780.46/193.23
  6. Step 6: Final answer
    x = 190.35

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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.