Home / 284,121.66-392,097.30-155,067.18

Finding the Fourth Proportional to 284,121.66, 392,097.30 and 155,067.18

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Solution

The fourth proportional to 284,121.66, 392,097.30 and 155,067.18 is: 213,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,121.66 : 392,097.30 = 155,067.18 : x
  2. Step 2: Convert to fraction form
    284,121.66/392,097.30 = 155,067.18/x
  3. Step 3: Cross multiply
    284,121.66x = 392,097.30 × 155,067.18
  4. Step 4: Simplify right side
    284,121.66x = 60,801,422,596.61
  5. Step 5: Solve for x
    x = 60,801,422,596.61/284,121.66
  6. Step 6: Final answer
    x = 213,997.84

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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.