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Finding the Fourth Proportional to 263.71, 394.93 and 223.03

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Solution

The fourth proportional to 263.71, 394.93 and 223.03 is: 334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.71 : 394.93 = 223.03 : x
  2. Step 2: Convert to fraction form
    263.71/394.93 = 223.03/x
  3. Step 3: Cross multiply
    263.71x = 394.93 × 223.03
  4. Step 4: Simplify right side
    263.71x = 88,081.24
  5. Step 5: Solve for x
    x = 88,081.24/263.71
  6. Step 6: Final answer
    x = 334.01

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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.