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Finding the Fourth Proportional to 368.07, 551.70 and 223.89

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Solution

The fourth proportional to 368.07, 551.70 and 223.89 is: 335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.07 : 551.70 = 223.89 : x
  2. Step 2: Convert to fraction form
    368.07/551.70 = 223.89/x
  3. Step 3: Cross multiply
    368.07x = 551.70 × 223.89
  4. Step 4: Simplify right side
    368.07x = 123,520.11
  5. Step 5: Solve for x
    x = 123,520.11/368.07
  6. Step 6: Final answer
    x = 335.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.