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Finding the Fourth Proportional to 359.75, 495.06 and 347.87

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Solution

The fourth proportional to 359.75, 495.06 and 347.87 is: 478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.75 : 495.06 = 347.87 : x
  2. Step 2: Convert to fraction form
    359.75/495.06 = 347.87/x
  3. Step 3: Cross multiply
    359.75x = 495.06 × 347.87
  4. Step 4: Simplify right side
    359.75x = 172,216.52
  5. Step 5: Solve for x
    x = 172,216.52/359.75
  6. Step 6: Final answer
    x = 478.71

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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.