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Finding the Fourth Proportional to 193.53, 266.89 and 156.67

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Solution

The fourth proportional to 193.53, 266.89 and 156.67 is: 216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.53 : 266.89 = 156.67 : x
  2. Step 2: Convert to fraction form
    193.53/266.89 = 156.67/x
  3. Step 3: Cross multiply
    193.53x = 266.89 × 156.67
  4. Step 4: Simplify right side
    193.53x = 41,813.66
  5. Step 5: Solve for x
    x = 41,813.66/193.53
  6. Step 6: Final answer
    x = 216.06

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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.