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Finding the Fourth Proportional to 175.76, 263.64 and 170.90

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Solution

The fourth proportional to 175.76, 263.64 and 170.90 is: 256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.76 : 263.64 = 170.90 : x
  2. Step 2: Convert to fraction form
    175.76/263.64 = 170.90/x
  3. Step 3: Cross multiply
    175.76x = 263.64 × 170.90
  4. Step 4: Simplify right side
    175.76x = 45,056.08
  5. Step 5: Solve for x
    x = 45,056.08/175.76
  6. Step 6: Final answer
    x = 256.35

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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.