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Finding the Fourth Proportional to 636,107.43, 954,279.38 and 209,673.21

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Solution

The fourth proportional to 636,107.43, 954,279.38 and 209,673.21 is: 314,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,107.43 : 954,279.38 = 209,673.21 : x
  2. Step 2: Convert to fraction form
    636,107.43/954,279.38 = 209,673.21/x
  3. Step 3: Cross multiply
    636,107.43x = 954,279.38 × 209,673.21
  4. Step 4: Simplify right side
    636,107.43x = 200,086,818,396.91
  5. Step 5: Solve for x
    x = 200,086,818,396.91/636,107.43
  6. Step 6: Final answer
    x = 314,548.78

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1.5x scale

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.