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Finding the Fourth Proportional to 603.91, 906.02 and 171.07

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Solution

The fourth proportional to 603.91, 906.02 and 171.07 is: 256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.91 : 906.02 = 171.07 : x
  2. Step 2: Convert to fraction form
    603.91/906.02 = 171.07/x
  3. Step 3: Cross multiply
    603.91x = 906.02 × 171.07
  4. Step 4: Simplify right side
    603.91x = 154,991.99
  5. Step 5: Solve for x
    x = 154,991.99/603.91
  6. Step 6: Final answer
    x = 256.65

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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.