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Finding the Fourth Proportional to 516.66, 775.58 and 483.22

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Solution

The fourth proportional to 516.66, 775.58 and 483.22 is: 725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.66 : 775.58 = 483.22 : x
  2. Step 2: Convert to fraction form
    516.66/775.58 = 483.22/x
  3. Step 3: Cross multiply
    516.66x = 775.58 × 483.22
  4. Step 4: Simplify right side
    516.66x = 374,773.10
  5. Step 5: Solve for x
    x = 374,773.10/516.66
  6. Step 6: Final answer
    x = 725.37

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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.