Home / 286,043.97-394,739.40-158,719.26

Finding the Fourth Proportional to 286,043.97, 394,739.40 and 158,719.26

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Solution

The fourth proportional to 286,043.97, 394,739.40 and 158,719.26 is: 219,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,043.97 : 394,739.40 = 158,719.26 : x
  2. Step 2: Convert to fraction form
    286,043.97/394,739.40 = 158,719.26/x
  3. Step 3: Cross multiply
    286,043.97x = 394,739.40 × 158,719.26
  4. Step 4: Simplify right side
    286,043.97x = 62,652,745,460.84
  5. Step 5: Solve for x
    x = 62,652,745,460.84/286,043.97
  6. Step 6: Final answer
    x = 219,031.87

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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.