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Finding the Fourth Proportional to 176.15, 264.04 and 84.79

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Solution

The fourth proportional to 176.15, 264.04 and 84.79 is: 127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.15 : 264.04 = 84.79 : x
  2. Step 2: Convert to fraction form
    176.15/264.04 = 84.79/x
  3. Step 3: Cross multiply
    176.15x = 264.04 × 84.79
  4. Step 4: Simplify right side
    176.15x = 22,387.08
  5. Step 5: Solve for x
    x = 22,387.08/176.15
  6. Step 6: Final answer
    x = 127.09

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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.