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Finding the Fourth Proportional to 404.93, 559.29 and 294.23

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Solution

The fourth proportional to 404.93, 559.29 and 294.23 is: 406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.93 : 559.29 = 294.23 : x
  2. Step 2: Convert to fraction form
    404.93/559.29 = 294.23/x
  3. Step 3: Cross multiply
    404.93x = 559.29 × 294.23
  4. Step 4: Simplify right side
    404.93x = 164,557.10
  5. Step 5: Solve for x
    x = 164,557.10/404.93
  6. Step 6: Final answer
    x = 406.39

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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.