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Finding the Fourth Proportional to 225,477.20, 338,221.20 and 75,722.32

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Solution

The fourth proportional to 225,477.20, 338,221.20 and 75,722.32 is: 113,585.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,477.20 : 338,221.20 = 75,722.32 : x
  2. Step 2: Convert to fraction form
    225,477.20/338,221.20 = 75,722.32/x
  3. Step 3: Cross multiply
    225,477.20x = 338,221.20 × 75,722.32
  4. Step 4: Simplify right side
    225,477.20x = 25,610,893,937.18
  5. Step 5: Solve for x
    x = 25,610,893,937.18/225,477.20
  6. Step 6: Final answer
    x = 113,585.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.