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Finding the Fourth Proportional to 438.18, 604.67 and 241.68

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Solution

The fourth proportional to 438.18, 604.67 and 241.68 is: 333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.18 : 604.67 = 241.68 : x
  2. Step 2: Convert to fraction form
    438.18/604.67 = 241.68/x
  3. Step 3: Cross multiply
    438.18x = 604.67 × 241.68
  4. Step 4: Simplify right side
    438.18x = 146,137.70
  5. Step 5: Solve for x
    x = 146,137.70/438.18
  6. Step 6: Final answer
    x = 333.51

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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.