Home / 378,161.04-521,855.53-206,080.52

Finding the Fourth Proportional to 378,161.04, 521,855.53 and 206,080.52

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Solution

The fourth proportional to 378,161.04, 521,855.53 and 206,080.52 is: 284,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,161.04 : 521,855.53 = 206,080.52 : x
  2. Step 2: Convert to fraction form
    378,161.04/521,855.53 = 206,080.52/x
  3. Step 3: Cross multiply
    378,161.04x = 521,855.53 × 206,080.52
  4. Step 4: Simplify right side
    378,161.04x = 107,544,258,987.28
  5. Step 5: Solve for x
    x = 107,544,258,987.28/378,161.04
  6. Step 6: Final answer
    x = 284,387.46

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1.5x scale

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.