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Finding the Fourth Proportional to 445,792.11, 668,685.79 and 108,834.54

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Solution

The fourth proportional to 445,792.11, 668,685.79 and 108,834.54 is: 163,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,792.11 : 668,685.79 = 108,834.54 : x
  2. Step 2: Convert to fraction form
    445,792.11/668,685.79 = 108,834.54/x
  3. Step 3: Cross multiply
    445,792.11x = 668,685.79 × 108,834.54
  4. Step 4: Simplify right side
    445,792.11x = 72,776,110,359.19
  5. Step 5: Solve for x
    x = 72,776,110,359.19/445,792.11
  6. Step 6: Final answer
    x = 163,251.23

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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.