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Finding the Fourth Proportional to 175.76, 263.36 and 143.44

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Solution

The fourth proportional to 175.76, 263.36 and 143.44 is: 214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.76 : 263.36 = 143.44 : x
  2. Step 2: Convert to fraction form
    175.76/263.36 = 143.44/x
  3. Step 3: Cross multiply
    175.76x = 263.36 × 143.44
  4. Step 4: Simplify right side
    175.76x = 37,776.36
  5. Step 5: Solve for x
    x = 37,776.36/175.76
  6. Step 6: Final answer
    x = 214.93

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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.