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Finding the Fourth Proportional to 220,410.62, 304,199.91 and 134,419.49

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Solution

The fourth proportional to 220,410.62, 304,199.91 and 134,419.49 is: 185,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,410.62 : 304,199.91 = 134,419.49 : x
  2. Step 2: Convert to fraction form
    220,410.62/304,199.91 = 134,419.49/x
  3. Step 3: Cross multiply
    220,410.62x = 304,199.91 × 134,419.49
  4. Step 4: Simplify right side
    220,410.62x = 40,890,396,760.25
  5. Step 5: Solve for x
    x = 40,890,396,760.25/220,410.62
  6. Step 6: Final answer
    x = 185,519.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.