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Finding the Fourth Proportional to 303,306.85, 454,917.07 and 103,636.45

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Solution

The fourth proportional to 303,306.85, 454,917.07 and 103,636.45 is: 155,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,306.85 : 454,917.07 = 103,636.45 : x
  2. Step 2: Convert to fraction form
    303,306.85/454,917.07 = 103,636.45/x
  3. Step 3: Cross multiply
    303,306.85x = 454,917.07 × 103,636.45
  4. Step 4: Simplify right side
    303,306.85x = 47,145,990,179.20
  5. Step 5: Solve for x
    x = 47,145,990,179.20/303,306.85
  6. Step 6: Final answer
    x = 155,439.91

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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.