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Finding the Fourth Proportional to 225,385.60, 338,035.20 and 67,619.20

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Solution

The fourth proportional to 225,385.60, 338,035.20 and 67,619.20 is: 101,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,385.60 : 338,035.20 = 67,619.20 : x
  2. Step 2: Convert to fraction form
    225,385.60/338,035.20 = 67,619.20/x
  3. Step 3: Cross multiply
    225,385.60x = 338,035.20 × 67,619.20
  4. Step 4: Simplify right side
    225,385.60x = 22,857,669,795.84
  5. Step 5: Solve for x
    x = 22,857,669,795.84/225,385.60
  6. Step 6: Final answer
    x = 101,415.84

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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.