Home / 324,923.40-487,212.30-137,723.40

Finding the Fourth Proportional to 324,923.40, 487,212.30 and 137,723.40

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Solution

The fourth proportional to 324,923.40, 487,212.30 and 137,723.40 is: 206,511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,923.40 : 487,212.30 = 137,723.40 : x
  2. Step 2: Convert to fraction form
    324,923.40/487,212.30 = 137,723.40/x
  3. Step 3: Cross multiply
    324,923.40x = 487,212.30 × 137,723.40
  4. Step 4: Simplify right side
    324,923.40x = 67,100,534,477.82
  5. Step 5: Solve for x
    x = 67,100,534,477.82/324,923.40
  6. Step 6: Final answer
    x = 206,511.86

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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.