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Finding the Fourth Proportional to 438.19, 604.11 and 375.75

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Solution

The fourth proportional to 438.19, 604.11 and 375.75 is: 518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.19 : 604.11 = 375.75 : x
  2. Step 2: Convert to fraction form
    438.19/604.11 = 375.75/x
  3. Step 3: Cross multiply
    438.19x = 604.11 × 375.75
  4. Step 4: Simplify right side
    438.19x = 226,994.33
  5. Step 5: Solve for x
    x = 226,994.33/438.19
  6. Step 6: Final answer
    x = 518.03

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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.