Home / 286,109.96-394,826.82-158,790.92

Finding the Fourth Proportional to 286,109.96, 394,826.82 and 158,790.92

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Solution

The fourth proportional to 286,109.96, 394,826.82 and 158,790.92 is: 219,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,109.96 : 394,826.82 = 158,790.92 : x
  2. Step 2: Convert to fraction form
    286,109.96/394,826.82 = 158,790.92/x
  3. Step 3: Cross multiply
    286,109.96x = 394,826.82 × 158,790.92
  4. Step 4: Simplify right side
    286,109.96x = 62,694,913,988.47
  5. Step 5: Solve for x
    x = 62,694,913,988.47/286,109.96
  6. Step 6: Final answer
    x = 219,128.74

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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.