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Finding the Fourth Proportional to 404.79, 606.42 and 301.56

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Solution

The fourth proportional to 404.79, 606.42 and 301.56 is: 451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.79 : 606.42 = 301.56 : x
  2. Step 2: Convert to fraction form
    404.79/606.42 = 301.56/x
  3. Step 3: Cross multiply
    404.79x = 606.42 × 301.56
  4. Step 4: Simplify right side
    404.79x = 182,872.02
  5. Step 5: Solve for x
    x = 182,872.02/404.79
  6. Step 6: Final answer
    x = 451.77

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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.