Home / 286,128.93-394,766.60-165,254.25

Finding the Fourth Proportional to 286,128.93, 394,766.60 and 165,254.25

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Solution

The fourth proportional to 286,128.93, 394,766.60 and 165,254.25 is: 227,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,128.93 : 394,766.60 = 165,254.25 : x
  2. Step 2: Convert to fraction form
    286,128.93/394,766.60 = 165,254.25/x
  3. Step 3: Cross multiply
    286,128.93x = 394,766.60 × 165,254.25
  4. Step 4: Simplify right side
    286,128.93x = 65,236,857,581.78
  5. Step 5: Solve for x
    x = 65,236,857,581.78/286,128.93
  6. Step 6: Final answer
    x = 227,998.12

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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.