Home / 213,171.35-319,758.39-146,409.08

Finding the Fourth Proportional to 213,171.35, 319,758.39 and 146,409.08

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Solution

The fourth proportional to 213,171.35, 319,758.39 and 146,409.08 is: 219,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,171.35 : 319,758.39 = 146,409.08 : x
  2. Step 2: Convert to fraction form
    213,171.35/319,758.39 = 146,409.08/x
  3. Step 3: Cross multiply
    213,171.35x = 319,758.39 × 146,409.08
  4. Step 4: Simplify right side
    213,171.35x = 46,815,530,103.39
  5. Step 5: Solve for x
    x = 46,815,530,103.39/213,171.35
  6. Step 6: Final answer
    x = 219,614.56

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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.