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Finding the Fourth Proportional to 274.47, 379.06 and 222.53

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Solution

The fourth proportional to 274.47, 379.06 and 222.53 is: 307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.47 : 379.06 = 222.53 : x
  2. Step 2: Convert to fraction form
    274.47/379.06 = 222.53/x
  3. Step 3: Cross multiply
    274.47x = 379.06 × 222.53
  4. Step 4: Simplify right side
    274.47x = 84,353.15
  5. Step 5: Solve for x
    x = 84,353.15/274.47
  6. Step 6: Final answer
    x = 307.33

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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.