Home / 286,209.78-394,954.06-158,877.18

Finding the Fourth Proportional to 286,209.78, 394,954.06 and 158,877.18

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Solution

The fourth proportional to 286,209.78, 394,954.06 and 158,877.18 is: 219,241.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,209.78 : 394,954.06 = 158,877.18 : x
  2. Step 2: Convert to fraction form
    286,209.78/394,954.06 = 158,877.18/x
  3. Step 3: Cross multiply
    286,209.78x = 394,954.06 × 158,877.18
  4. Step 4: Simplify right side
    286,209.78x = 62,749,187,282.35
  5. Step 5: Solve for x
    x = 62,749,187,282.35/286,209.78
  6. Step 6: Final answer
    x = 219,241.94

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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.