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Finding the Fourth Proportional to 441.90, 667.86 and 437.04

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Solution

The fourth proportional to 441.90, 667.86 and 437.04 is: 660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.90 : 667.86 = 437.04 : x
  2. Step 2: Convert to fraction form
    441.90/667.86 = 437.04/x
  3. Step 3: Cross multiply
    441.90x = 667.86 × 437.04
  4. Step 4: Simplify right side
    441.90x = 291,881.53
  5. Step 5: Solve for x
    x = 291,881.53/441.90
  6. Step 6: Final answer
    x = 660.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.