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Finding the Fourth Proportional to 359.00, 495.61 and 219.15

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Solution

The fourth proportional to 359.00, 495.61 and 219.15 is: 302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.00 : 495.61 = 219.15 : x
  2. Step 2: Convert to fraction form
    359.00/495.61 = 219.15/x
  3. Step 3: Cross multiply
    359.00x = 495.61 × 219.15
  4. Step 4: Simplify right side
    359.00x = 108,610.45
  5. Step 5: Solve for x
    x = 108,610.45/359.00
  6. Step 6: Final answer
    x = 302.54

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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.