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Finding the Fourth Proportional to 395.47, 544.89 and 377.04

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Solution

The fourth proportional to 395.47, 544.89 and 377.04 is: 519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.47 : 544.89 = 377.04 : x
  2. Step 2: Convert to fraction form
    395.47/544.89 = 377.04/x
  3. Step 3: Cross multiply
    395.47x = 544.89 × 377.04
  4. Step 4: Simplify right side
    395.47x = 205,445.33
  5. Step 5: Solve for x
    x = 205,445.33/395.47
  6. Step 6: Final answer
    x = 519.50

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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.