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Finding the Fourth Proportional to 358.36, 494.22 and 303.04

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Solution

The fourth proportional to 358.36, 494.22 and 303.04 is: 417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.36 : 494.22 = 303.04 : x
  2. Step 2: Convert to fraction form
    358.36/494.22 = 303.04/x
  3. Step 3: Cross multiply
    358.36x = 494.22 × 303.04
  4. Step 4: Simplify right side
    358.36x = 149,768.43
  5. Step 5: Solve for x
    x = 149,768.43/358.36
  6. Step 6: Final answer
    x = 417.93

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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.