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Finding the Fourth Proportional to 222.51, 335.06 and 165.14

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Solution

The fourth proportional to 222.51, 335.06 and 165.14 is: 248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.51 : 335.06 = 165.14 : x
  2. Step 2: Convert to fraction form
    222.51/335.06 = 165.14/x
  3. Step 3: Cross multiply
    222.51x = 335.06 × 165.14
  4. Step 4: Simplify right side
    222.51x = 55,330.13
  5. Step 5: Solve for x
    x = 55,330.13/222.51
  6. Step 6: Final answer
    x = 248.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.