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Finding the Fourth Proportional to 395.33, 544.32 and 336.20

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Solution

The fourth proportional to 395.33, 544.32 and 336.20 is: 462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.33 : 544.32 = 336.20 : x
  2. Step 2: Convert to fraction form
    395.33/544.32 = 336.20/x
  3. Step 3: Cross multiply
    395.33x = 544.32 × 336.20
  4. Step 4: Simplify right side
    395.33x = 183,000.38
  5. Step 5: Solve for x
    x = 183,000.38/395.33
  6. Step 6: Final answer
    x = 462.91

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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.