Home / 286,039.14-394,734-158,715.66

Finding the Fourth Proportional to 286,039.14, 394,734 and 158,715.66

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Solution

The fourth proportional to 286,039.14, 394,734 and 158,715.66 is: 219,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,039.14 : 394,734 = 158,715.66 : x
  2. Step 2: Convert to fraction form
    286,039.14/394,734 = 158,715.66/x
  3. Step 3: Cross multiply
    286,039.14x = 394,734 × 158,715.66
  4. Step 4: Simplify right side
    286,039.14x = 62,650,467,334.44
  5. Step 5: Solve for x
    x = 62,650,467,334.44/286,039.14
  6. Step 6: Final answer
    x = 219,027.60

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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.