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Finding the Fourth Proportional to 604.17, 906.06 and 171.21

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Solution

The fourth proportional to 604.17, 906.06 and 171.21 is: 256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.17 : 906.06 = 171.21 : x
  2. Step 2: Convert to fraction form
    604.17/906.06 = 171.21/x
  3. Step 3: Cross multiply
    604.17x = 906.06 × 171.21
  4. Step 4: Simplify right side
    604.17x = 155,126.53
  5. Step 5: Solve for x
    x = 155,126.53/604.17
  6. Step 6: Final answer
    x = 256.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.