Home / 378,170.58-521,868.57-206,090.04

Finding the Fourth Proportional to 378,170.58, 521,868.57 and 206,090.04

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Solution

The fourth proportional to 378,170.58, 521,868.57 and 206,090.04 is: 284,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,170.58 : 521,868.57 = 206,090.04 : x
  2. Step 2: Convert to fraction form
    378,170.58/521,868.57 = 206,090.04/x
  3. Step 3: Cross multiply
    378,170.58x = 521,868.57 × 206,090.04
  4. Step 4: Simplify right side
    378,170.58x = 107,551,914,466.04
  5. Step 5: Solve for x
    x = 107,551,914,466.04/378,170.58
  6. Step 6: Final answer
    x = 284,400.53

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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.