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Finding the Fourth Proportional to 404.43, 606.35 and 130.37

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Solution

The fourth proportional to 404.43, 606.35 and 130.37 is: 195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.43 : 606.35 = 130.37 : x
  2. Step 2: Convert to fraction form
    404.43/606.35 = 130.37/x
  3. Step 3: Cross multiply
    404.43x = 606.35 × 130.37
  4. Step 4: Simplify right side
    404.43x = 79,046.17
  5. Step 5: Solve for x
    x = 79,046.17/404.43
  6. Step 6: Final answer
    x = 195.45

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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.