Home / 286,121.88-394,849.83-178,754.28

Finding the Fourth Proportional to 286,121.88, 394,849.83 and 178,754.28

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Solution

The fourth proportional to 286,121.88, 394,849.83 and 178,754.28 is: 246,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,121.88 : 394,849.83 = 178,754.28 : x
  2. Step 2: Convert to fraction form
    286,121.88/394,849.83 = 178,754.28/x
  3. Step 3: Cross multiply
    286,121.88x = 394,849.83 × 178,754.28
  4. Step 4: Simplify right side
    286,121.88x = 70,581,097,069.77
  5. Step 5: Solve for x
    x = 70,581,097,069.77/286,121.88
  6. Step 6: Final answer
    x = 246,681.93

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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.