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Finding the Fourth Proportional to 225,813.70, 338,600.26 and 76,004.20

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Solution

The fourth proportional to 225,813.70, 338,600.26 and 76,004.20 is: 113,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,813.70 : 338,600.26 = 76,004.20 : x
  2. Step 2: Convert to fraction form
    225,813.70/338,600.26 = 76,004.20/x
  3. Step 3: Cross multiply
    225,813.70x = 338,600.26 × 76,004.20
  4. Step 4: Simplify right side
    225,813.70x = 25,735,041,881.09
  5. Step 5: Solve for x
    x = 25,735,041,881.09/225,813.70
  6. Step 6: Final answer
    x = 113,965.81

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1.5x scale

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.