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Finding the Fourth Proportional to 395.63, 546.05 and 246.28

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Solution

The fourth proportional to 395.63, 546.05 and 246.28 is: 339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.63 : 546.05 = 246.28 : x
  2. Step 2: Convert to fraction form
    395.63/546.05 = 246.28/x
  3. Step 3: Cross multiply
    395.63x = 546.05 × 246.28
  4. Step 4: Simplify right side
    395.63x = 134,481.19
  5. Step 5: Solve for x
    x = 134,481.19/395.63
  6. Step 6: Final answer
    x = 339.92

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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.