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Finding the Fourth Proportional to 222.33, 306.81 and 124.08

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Solution

The fourth proportional to 222.33, 306.81 and 124.08 is: 171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.33 : 306.81 = 124.08 : x
  2. Step 2: Convert to fraction form
    222.33/306.81 = 124.08/x
  3. Step 3: Cross multiply
    222.33x = 306.81 × 124.08
  4. Step 4: Simplify right side
    222.33x = 38,068.98
  5. Step 5: Solve for x
    x = 38,068.98/222.33
  6. Step 6: Final answer
    x = 171.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.