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Finding the Fourth Proportional to 369.71, 553.79 and 223.00

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Solution

The fourth proportional to 369.71, 553.79 and 223.00 is: 334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.71 : 553.79 = 223.00 : x
  2. Step 2: Convert to fraction form
    369.71/553.79 = 223.00/x
  3. Step 3: Cross multiply
    369.71x = 553.79 × 223.00
  4. Step 4: Simplify right side
    369.71x = 123,495.44
  5. Step 5: Solve for x
    x = 123,495.44/369.71
  6. Step 6: Final answer
    x = 334.03

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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.