Home / 321,979.40-482,580.30-164,126.60

Finding the Fourth Proportional to 321,979.40, 482,580.30 and 164,126.60

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Solution

The fourth proportional to 321,979.40, 482,580.30 and 164,126.60 is: 245,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,979.40 : 482,580.30 = 164,126.60 : x
  2. Step 2: Convert to fraction form
    321,979.40/482,580.30 = 164,126.60/x
  3. Step 3: Cross multiply
    321,979.40x = 482,580.30 × 164,126.60
  4. Step 4: Simplify right side
    321,979.40x = 79,204,263,865.98
  5. Step 5: Solve for x
    x = 79,204,263,865.98/321,979.40
  6. Step 6: Final answer
    x = 245,991.71

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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.