Home / 286,086.63-394,759.25-171,338.39

Finding the Fourth Proportional to 286,086.63, 394,759.25 and 171,338.39

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Solution

The fourth proportional to 286,086.63, 394,759.25 and 171,338.39 is: 236,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,086.63 : 394,759.25 = 171,338.39 : x
  2. Step 2: Convert to fraction form
    286,086.63/394,759.25 = 171,338.39/x
  3. Step 3: Cross multiply
    286,086.63x = 394,759.25 × 171,338.39
  4. Step 4: Simplify right side
    286,086.63x = 67,637,411,502.12
  5. Step 5: Solve for x
    x = 67,637,411,502.12/286,086.63
  6. Step 6: Final answer
    x = 236,422.83

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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.