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Finding the Fourth Proportional to 441.18, 608.58 and 275.34

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Solution

The fourth proportional to 441.18, 608.58 and 275.34 is: 379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.18 : 608.58 = 275.34 : x
  2. Step 2: Convert to fraction form
    441.18/608.58 = 275.34/x
  3. Step 3: Cross multiply
    441.18x = 608.58 × 275.34
  4. Step 4: Simplify right side
    441.18x = 167,566.42
  5. Step 5: Solve for x
    x = 167,566.42/441.18
  6. Step 6: Final answer
    x = 379.81

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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.