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Finding the Fourth Proportional to 354.08, 488.48 and 222.92

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Solution

The fourth proportional to 354.08, 488.48 and 222.92 is: 307.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.08 : 488.48 = 222.92 : x
  2. Step 2: Convert to fraction form
    354.08/488.48 = 222.92/x
  3. Step 3: Cross multiply
    354.08x = 488.48 × 222.92
  4. Step 4: Simplify right side
    354.08x = 108,891.96
  5. Step 5: Solve for x
    x = 108,891.96/354.08
  6. Step 6: Final answer
    x = 307.53

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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.