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Finding the Fourth Proportional to 354.22, 488.05 and 237.58

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Solution

The fourth proportional to 354.22, 488.05 and 237.58 is: 327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.22 : 488.05 = 237.58 : x
  2. Step 2: Convert to fraction form
    354.22/488.05 = 237.58/x
  3. Step 3: Cross multiply
    354.22x = 488.05 × 237.58
  4. Step 4: Simplify right side
    354.22x = 115,949.10
  5. Step 5: Solve for x
    x = 115,949.10/354.22
  6. Step 6: Final answer
    x = 327.34

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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.