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Finding the Fourth Proportional to 666,909.82, 1,000,367.30 and 161,469.96

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Solution

The fourth proportional to 666,909.82, 1,000,367.30 and 161,469.96 is: 242,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,909.82 : 1,000,367.30 = 161,469.96 : x
  2. Step 2: Convert to fraction form
    666,909.82/1,000,367.30 = 161,469.96/x
  3. Step 3: Cross multiply
    666,909.82x = 1,000,367.30 × 161,469.96
  4. Step 4: Simplify right side
    666,909.82x = 161,529,267,916.31
  5. Step 5: Solve for x
    x = 161,529,267,916.31/666,909.82
  6. Step 6: Final answer
    x = 242,205.56

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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.