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Finding the Fourth Proportional to 193.30, 288.49 and 177.55

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Solution

The fourth proportional to 193.30, 288.49 and 177.55 is: 264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.30 : 288.49 = 177.55 : x
  2. Step 2: Convert to fraction form
    193.30/288.49 = 177.55/x
  3. Step 3: Cross multiply
    193.30x = 288.49 × 177.55
  4. Step 4: Simplify right side
    193.30x = 51,221.40
  5. Step 5: Solve for x
    x = 51,221.40/193.30
  6. Step 6: Final answer
    x = 264.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.