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Finding the Fourth Proportional to 200,660.22, 301,021.43 and 67,530.11

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Solution

The fourth proportional to 200,660.22, 301,021.43 and 67,530.11 is: 101,305.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,660.22 : 301,021.43 = 67,530.11 : x
  2. Step 2: Convert to fraction form
    200,660.22/301,021.43 = 67,530.11/x
  3. Step 3: Cross multiply
    200,660.22x = 301,021.43 × 67,530.11
  4. Step 4: Simplify right side
    200,660.22x = 20,328,008,437.50
  5. Step 5: Solve for x
    x = 20,328,008,437.50/200,660.22
  6. Step 6: Final answer
    x = 101,305.62

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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.