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Finding the Fourth Proportional to 395.44, 543.62 and 336.88

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Solution

The fourth proportional to 395.44, 543.62 and 336.88 is: 463.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.44 : 543.62 = 336.88 : x
  2. Step 2: Convert to fraction form
    395.44/543.62 = 336.88/x
  3. Step 3: Cross multiply
    395.44x = 543.62 × 336.88
  4. Step 4: Simplify right side
    395.44x = 183,134.71
  5. Step 5: Solve for x
    x = 183,134.71/395.44
  6. Step 6: Final answer
    x = 463.12

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