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Finding the Fourth Proportional to 358.24, 494.40 and 234.08

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Solution

The fourth proportional to 358.24, 494.40 and 234.08 is: 323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.24 : 494.40 = 234.08 : x
  2. Step 2: Convert to fraction form
    358.24/494.40 = 234.08/x
  3. Step 3: Cross multiply
    358.24x = 494.40 × 234.08
  4. Step 4: Simplify right side
    358.24x = 115,729.15
  5. Step 5: Solve for x
    x = 115,729.15/358.24
  6. Step 6: Final answer
    x = 323.05

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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.