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Finding the Fourth Proportional to 176.31, 263.16 and 135.54

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Solution

The fourth proportional to 176.31, 263.16 and 135.54 is: 202.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.31 : 263.16 = 135.54 : x
  2. Step 2: Convert to fraction form
    176.31/263.16 = 135.54/x
  3. Step 3: Cross multiply
    176.31x = 263.16 × 135.54
  4. Step 4: Simplify right side
    176.31x = 35,668.71
  5. Step 5: Solve for x
    x = 35,668.71/176.31
  6. Step 6: Final answer
    x = 202.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.