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Finding the Fourth Proportional to 503.26, 755.76 and 299.11

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Solution

The fourth proportional to 503.26, 755.76 and 299.11 is: 449.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.26 : 755.76 = 299.11 : x
  2. Step 2: Convert to fraction form
    503.26/755.76 = 299.11/x
  3. Step 3: Cross multiply
    503.26x = 755.76 × 299.11
  4. Step 4: Simplify right side
    503.26x = 226,055.37
  5. Step 5: Solve for x
    x = 226,055.37/503.26
  6. Step 6: Final answer
    x = 449.18

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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.