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Finding the Fourth Proportional to 181.01, 248.17 and 172.51

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Solution

The fourth proportional to 181.01, 248.17 and 172.51 is: 236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.01 : 248.17 = 172.51 : x
  2. Step 2: Convert to fraction form
    181.01/248.17 = 172.51/x
  3. Step 3: Cross multiply
    181.01x = 248.17 × 172.51
  4. Step 4: Simplify right side
    181.01x = 42,811.81
  5. Step 5: Solve for x
    x = 42,811.81/181.01
  6. Step 6: Final answer
    x = 236.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.