Home / 505,171.28-757,558.52-189,456.08

Finding the Fourth Proportional to 505,171.28, 757,558.52 and 189,456.08

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Solution

The fourth proportional to 505,171.28, 757,558.52 and 189,456.08 is: 284,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,171.28 : 757,558.52 = 189,456.08 : x
  2. Step 2: Convert to fraction form
    505,171.28/757,558.52 = 189,456.08/x
  3. Step 3: Cross multiply
    505,171.28x = 757,558.52 × 189,456.08
  4. Step 4: Simplify right side
    505,171.28x = 143,524,067,569.80
  5. Step 5: Solve for x
    x = 143,524,067,569.80/505,171.28
  6. Step 6: Final answer
    x = 284,109.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.