Home / 286,108.12-394,900.41-165,319.30

Finding the Fourth Proportional to 286,108.12, 394,900.41 and 165,319.30

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Solution

The fourth proportional to 286,108.12, 394,900.41 and 165,319.30 is: 228,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,108.12 : 394,900.41 = 165,319.30 : x
  2. Step 2: Convert to fraction form
    286,108.12/394,900.41 = 165,319.30/x
  3. Step 3: Cross multiply
    286,108.12x = 394,900.41 × 165,319.30
  4. Step 4: Simplify right side
    286,108.12x = 65,284,659,350.91
  5. Step 5: Solve for x
    x = 65,284,659,350.91/286,108.12
  6. Step 6: Final answer
    x = 228,181.78

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1.5x scale

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.