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Finding the Fourth Proportional to 604.01, 905.78 and 193.03

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Solution

The fourth proportional to 604.01, 905.78 and 193.03 is: 289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.01 : 905.78 = 193.03 : x
  2. Step 2: Convert to fraction form
    604.01/905.78 = 193.03/x
  3. Step 3: Cross multiply
    604.01x = 905.78 × 193.03
  4. Step 4: Simplify right side
    604.01x = 174,846.03
  5. Step 5: Solve for x
    x = 174,846.03/604.01
  6. Step 6: Final answer
    x = 289.48

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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.