Home / 286,004.09-394,685.71-158,679.38

Finding the Fourth Proportional to 286,004.09, 394,685.71 and 158,679.38

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Solution

The fourth proportional to 286,004.09, 394,685.71 and 158,679.38 is: 218,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,004.09 : 394,685.71 = 158,679.38 : x
  2. Step 2: Convert to fraction form
    286,004.09/394,685.71 = 158,679.38/x
  3. Step 3: Cross multiply
    286,004.09x = 394,685.71 × 158,679.38
  4. Step 4: Simplify right side
    286,004.09x = 62,628,484,347.68
  5. Step 5: Solve for x
    x = 62,628,484,347.68/286,004.09
  6. Step 6: Final answer
    x = 218,977.58

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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.