Home / 261,997.21-393,072.36-84,500.29

Finding the Fourth Proportional to 261,997.21, 393,072.36 and 84,500.29

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Solution

The fourth proportional to 261,997.21, 393,072.36 and 84,500.29 is: 126,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,997.21 : 393,072.36 = 84,500.29 : x
  2. Step 2: Convert to fraction form
    261,997.21/393,072.36 = 84,500.29/x
  3. Step 3: Cross multiply
    261,997.21x = 393,072.36 × 84,500.29
  4. Step 4: Simplify right side
    261,997.21x = 33,214,728,410.98
  5. Step 5: Solve for x
    x = 33,214,728,410.98/261,997.21
  6. Step 6: Final answer
    x = 126,775.12

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1.5x scale

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.