Home / 286,129.43-394,767.29-165,254.75

Finding the Fourth Proportional to 286,129.43, 394,767.29 and 165,254.75

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Solution

The fourth proportional to 286,129.43, 394,767.29 and 165,254.75 is: 227,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,129.43 : 394,767.29 = 165,254.75 : x
  2. Step 2: Convert to fraction form
    286,129.43/394,767.29 = 165,254.75/x
  3. Step 3: Cross multiply
    286,129.43x = 394,767.29 × 165,254.75
  4. Step 4: Simplify right side
    286,129.43x = 65,237,168,990.85
  5. Step 5: Solve for x
    x = 65,237,168,990.85/286,129.43
  6. Step 6: Final answer
    x = 227,998.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.