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Finding the Fourth Proportional to 358.65, 494.76 and 240.69

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Solution

The fourth proportional to 358.65, 494.76 and 240.69 is: 332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.65 : 494.76 = 240.69 : x
  2. Step 2: Convert to fraction form
    358.65/494.76 = 240.69/x
  3. Step 3: Cross multiply
    358.65x = 494.76 × 240.69
  4. Step 4: Simplify right side
    358.65x = 119,083.78
  5. Step 5: Solve for x
    x = 119,083.78/358.65
  6. Step 6: Final answer
    x = 332.03

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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.