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Finding the Fourth Proportional to 176.55, 264.71 and 73.89

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Solution

The fourth proportional to 176.55, 264.71 and 73.89 is: 110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.55 : 264.71 = 73.89 : x
  2. Step 2: Convert to fraction form
    176.55/264.71 = 73.89/x
  3. Step 3: Cross multiply
    176.55x = 264.71 × 73.89
  4. Step 4: Simplify right side
    176.55x = 19,559.05
  5. Step 5: Solve for x
    x = 19,559.05/176.55
  6. Step 6: Final answer
    x = 110.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.