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Finding the Fourth Proportional to 176.64, 245.45 and 174.75

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Solution

The fourth proportional to 176.64, 245.45 and 174.75 is: 242.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.64 : 245.45 = 174.75 : x
  2. Step 2: Convert to fraction form
    176.64/245.45 = 174.75/x
  3. Step 3: Cross multiply
    176.64x = 245.45 × 174.75
  4. Step 4: Simplify right side
    176.64x = 42,892.39
  5. Step 5: Solve for x
    x = 42,892.39/176.64
  6. Step 6: Final answer
    x = 242.82

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.