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Finding the Fourth Proportional to 404.42, 606.20 and 160.60

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Solution

The fourth proportional to 404.42, 606.20 and 160.60 is: 240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.42 : 606.20 = 160.60 : x
  2. Step 2: Convert to fraction form
    404.42/606.20 = 160.60/x
  3. Step 3: Cross multiply
    404.42x = 606.20 × 160.60
  4. Step 4: Simplify right side
    404.42x = 97,355.72
  5. Step 5: Solve for x
    x = 97,355.72/404.42
  6. Step 6: Final answer
    x = 240.73

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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.