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Finding the Fourth Proportional to 520.26, 779.96 and 301.02

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Solution

The fourth proportional to 520.26, 779.96 and 301.02 is: 451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.26 : 779.96 = 301.02 : x
  2. Step 2: Convert to fraction form
    520.26/779.96 = 301.02/x
  3. Step 3: Cross multiply
    520.26x = 779.96 × 301.02
  4. Step 4: Simplify right side
    520.26x = 234,783.56
  5. Step 5: Solve for x
    x = 234,783.56/520.26
  6. Step 6: Final answer
    x = 451.28

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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.