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Finding the Fourth Proportional to 520.11, 779.83 and 246.37

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Solution

The fourth proportional to 520.11, 779.83 and 246.37 is: 369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.11 : 779.83 = 246.37 : x
  2. Step 2: Convert to fraction form
    520.11/779.83 = 246.37/x
  3. Step 3: Cross multiply
    520.11x = 779.83 × 246.37
  4. Step 4: Simplify right side
    520.11x = 192,126.72
  5. Step 5: Solve for x
    x = 192,126.72/520.11
  6. Step 6: Final answer
    x = 369.40

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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.