Home / 245,901.30-339,340.47-138,481.86

Finding the Fourth Proportional to 245,901.30, 339,340.47 and 138,481.86

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Solution

The fourth proportional to 245,901.30, 339,340.47 and 138,481.86 is: 191,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,901.30 : 339,340.47 = 138,481.86 : x
  2. Step 2: Convert to fraction form
    245,901.30/339,340.47 = 138,481.86/x
  3. Step 3: Cross multiply
    245,901.30x = 339,340.47 × 138,481.86
  4. Step 4: Simplify right side
    245,901.30x = 46,992,499,458.87
  5. Step 5: Solve for x
    x = 46,992,499,458.87/245,901.30
  6. Step 6: Final answer
    x = 191,103.09

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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.