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Finding the Fourth Proportional to 441,126, 661,689 and 108,702

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Solution

The fourth proportional to 441,126, 661,689 and 108,702 is: 163,053

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,126 : 661,689 = 108,702 : x
  2. Step 2: Convert to fraction form
    441,126/661,689 = 108,702/x
  3. Step 3: Cross multiply
    441,126x = 661,689 × 108,702
  4. Step 4: Simplify right side
    441,126x = 71,926,917,678
  5. Step 5: Solve for x
    x = 71,926,917,678/441,126
  6. Step 6: Final answer
    x = 163,053

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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.