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Finding the Fourth Proportional to 359.16, 495.87 and 276.12

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Solution

The fourth proportional to 359.16, 495.87 and 276.12 is: 381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.16 : 495.87 = 276.12 : x
  2. Step 2: Convert to fraction form
    359.16/495.87 = 276.12/x
  3. Step 3: Cross multiply
    359.16x = 495.87 × 276.12
  4. Step 4: Simplify right side
    359.16x = 136,919.62
  5. Step 5: Solve for x
    x = 136,919.62/359.16
  6. Step 6: Final answer
    x = 381.22

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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.