Home / 286,028.88-394,719.92-158,705.38

Finding the Fourth Proportional to 286,028.88, 394,719.92 and 158,705.38

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Solution

The fourth proportional to 286,028.88, 394,719.92 and 158,705.38 is: 219,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,028.88 : 394,719.92 = 158,705.38 : x
  2. Step 2: Convert to fraction form
    286,028.88/394,719.92 = 158,705.38/x
  3. Step 3: Cross multiply
    286,028.88x = 394,719.92 × 158,705.38
  4. Step 4: Simplify right side
    286,028.88x = 62,644,174,897.17
  5. Step 5: Solve for x
    x = 62,644,174,897.17/286,028.88
  6. Step 6: Final answer
    x = 219,013.46

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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.