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Finding the Fourth Proportional to 395.68, 541.88 and 395.32

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Solution

The fourth proportional to 395.68, 541.88 and 395.32 is: 541.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.68 : 541.88 = 395.32 : x
  2. Step 2: Convert to fraction form
    395.68/541.88 = 395.32/x
  3. Step 3: Cross multiply
    395.68x = 541.88 × 395.32
  4. Step 4: Simplify right side
    395.68x = 214,216.00
  5. Step 5: Solve for x
    x = 214,216.00/395.68
  6. Step 6: Final answer
    x = 541.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.