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Finding the Fourth Proportional to 515,814.45, 773,832.24 and 155,954.54

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Solution

The fourth proportional to 515,814.45, 773,832.24 and 155,954.54 is: 233,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,814.45 : 773,832.24 = 155,954.54 : x
  2. Step 2: Convert to fraction form
    515,814.45/773,832.24 = 155,954.54/x
  3. Step 3: Cross multiply
    515,814.45x = 773,832.24 × 155,954.54
  4. Step 4: Simplify right side
    515,814.45x = 120,682,647,157.21
  5. Step 5: Solve for x
    x = 120,682,647,157.21/515,814.45
  6. Step 6: Final answer
    x = 233,965.23

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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.