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Finding the Fourth Proportional to 294.04, 408.60 and 291.08

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Solution

The fourth proportional to 294.04, 408.60 and 291.08 is: 404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.04 : 408.60 = 291.08 : x
  2. Step 2: Convert to fraction form
    294.04/408.60 = 291.08/x
  3. Step 3: Cross multiply
    294.04x = 408.60 × 291.08
  4. Step 4: Simplify right side
    294.04x = 118,935.29
  5. Step 5: Solve for x
    x = 118,935.29/294.04
  6. Step 6: Final answer
    x = 404.49

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.