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Finding the Fourth Proportional to 176.10, 264.51 and 143.66

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Solution

The fourth proportional to 176.10, 264.51 and 143.66 is: 215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.10 : 264.51 = 143.66 : x
  2. Step 2: Convert to fraction form
    176.10/264.51 = 143.66/x
  3. Step 3: Cross multiply
    176.10x = 264.51 × 143.66
  4. Step 4: Simplify right side
    176.10x = 37,998.18
  5. Step 5: Solve for x
    x = 37,998.18/176.10
  6. Step 6: Final answer
    x = 215.78

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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.