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Finding the Fourth Proportional to 176.10, 242.75 and 144.96

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Solution

The fourth proportional to 176.10, 242.75 and 144.96 is: 199.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.10 : 242.75 = 144.96 : x
  2. Step 2: Convert to fraction form
    176.10/242.75 = 144.96/x
  3. Step 3: Cross multiply
    176.10x = 242.75 × 144.96
  4. Step 4: Simplify right side
    176.10x = 35,188.32
  5. Step 5: Solve for x
    x = 35,188.32/176.10
  6. Step 6: Final answer
    x = 199.82

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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.