Home / 286,179.12-394,945.08-158,856.84

Finding the Fourth Proportional to 286,179.12, 394,945.08 and 158,856.84

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Solution

The fourth proportional to 286,179.12, 394,945.08 and 158,856.84 is: 219,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,179.12 : 394,945.08 = 158,856.84 : x
  2. Step 2: Convert to fraction form
    286,179.12/394,945.08 = 158,856.84/x
  3. Step 3: Cross multiply
    286,179.12x = 394,945.08 × 158,856.84
  4. Step 4: Simplify right side
    286,179.12x = 62,739,727,382.35
  5. Step 5: Solve for x
    x = 62,739,727,382.35/286,179.12
  6. Step 6: Final answer
    x = 219,232.37

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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.