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Finding the Fourth Proportional to 399.88, 551.83 and 244.63

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Solution

The fourth proportional to 399.88, 551.83 and 244.63 is: 337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.88 : 551.83 = 244.63 : x
  2. Step 2: Convert to fraction form
    399.88/551.83 = 244.63/x
  3. Step 3: Cross multiply
    399.88x = 551.83 × 244.63
  4. Step 4: Simplify right side
    399.88x = 134,991.41
  5. Step 5: Solve for x
    x = 134,991.41/399.88
  6. Step 6: Final answer
    x = 337.58

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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.