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Finding the Fourth Proportional to 438, 604.42 and 241.53

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Solution

The fourth proportional to 438, 604.42 and 241.53 is: 333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438 : 604.42 = 241.53 : x
  2. Step 2: Convert to fraction form
    438/604.42 = 241.53/x
  3. Step 3: Cross multiply
    438x = 604.42 × 241.53
  4. Step 4: Simplify right side
    438x = 145,985.56
  5. Step 5: Solve for x
    x = 145,985.56/438
  6. Step 6: Final answer
    x = 333.30

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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.