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Finding the Fourth Proportional to 495.06, 682.36 and 347.43

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Solution

The fourth proportional to 495.06, 682.36 and 347.43 is: 478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.06 : 682.36 = 347.43 : x
  2. Step 2: Convert to fraction form
    495.06/682.36 = 347.43/x
  3. Step 3: Cross multiply
    495.06x = 682.36 × 347.43
  4. Step 4: Simplify right side
    495.06x = 237,074.03
  5. Step 5: Solve for x
    x = 237,074.03/495.06
  6. Step 6: Final answer
    x = 478.88

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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.