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Finding the Fourth Proportional to 400.21, 551.80 and 244.93

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Solution

The fourth proportional to 400.21, 551.80 and 244.93 is: 337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.21 : 551.80 = 244.93 : x
  2. Step 2: Convert to fraction form
    400.21/551.80 = 244.93/x
  3. Step 3: Cross multiply
    400.21x = 551.80 × 244.93
  4. Step 4: Simplify right side
    400.21x = 135,152.37
  5. Step 5: Solve for x
    x = 135,152.37/400.21
  6. Step 6: Final answer
    x = 337.70

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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.