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Finding the Fourth Proportional to 404.26, 559.11 and 360.52

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Solution

The fourth proportional to 404.26, 559.11 and 360.52 is: 498.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.26 : 559.11 = 360.52 : x
  2. Step 2: Convert to fraction form
    404.26/559.11 = 360.52/x
  3. Step 3: Cross multiply
    404.26x = 559.11 × 360.52
  4. Step 4: Simplify right side
    404.26x = 201,570.34
  5. Step 5: Solve for x
    x = 201,570.34/404.26
  6. Step 6: Final answer
    x = 498.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.