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Finding the Fourth Proportional to 358.77, 495.33 and 254.08

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Solution

The fourth proportional to 358.77, 495.33 and 254.08 is: 350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.77 : 495.33 = 254.08 : x
  2. Step 2: Convert to fraction form
    358.77/495.33 = 254.08/x
  3. Step 3: Cross multiply
    358.77x = 495.33 × 254.08
  4. Step 4: Simplify right side
    358.77x = 125,853.45
  5. Step 5: Solve for x
    x = 125,853.45/358.77
  6. Step 6: Final answer
    x = 350.80

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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.