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Finding the Fourth Proportional to 495.08, 682.73 and 395.82

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Solution

The fourth proportional to 495.08, 682.73 and 395.82 is: 545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.08 : 682.73 = 395.82 : x
  2. Step 2: Convert to fraction form
    495.08/682.73 = 395.82/x
  3. Step 3: Cross multiply
    495.08x = 682.73 × 395.82
  4. Step 4: Simplify right side
    495.08x = 270,238.19
  5. Step 5: Solve for x
    x = 270,238.19/495.08
  6. Step 6: Final answer
    x = 545.85

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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.