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Finding the Fourth Proportional to 395.43, 544.45 and 336.30

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Solution

The fourth proportional to 395.43, 544.45 and 336.30 is: 463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.43 : 544.45 = 336.30 : x
  2. Step 2: Convert to fraction form
    395.43/544.45 = 336.30/x
  3. Step 3: Cross multiply
    395.43x = 544.45 × 336.30
  4. Step 4: Simplify right side
    395.43x = 183,098.54
  5. Step 5: Solve for x
    x = 183,098.54/395.43
  6. Step 6: Final answer
    x = 463.04

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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.