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Finding the Fourth Proportional to 300,785.70, 451,206.39 and 98,382.95

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Solution

The fourth proportional to 300,785.70, 451,206.39 and 98,382.95 is: 147,583.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,785.70 : 451,206.39 = 98,382.95 : x
  2. Step 2: Convert to fraction form
    300,785.70/451,206.39 = 98,382.95/x
  3. Step 3: Cross multiply
    300,785.70x = 451,206.39 × 98,382.95
  4. Step 4: Simplify right side
    300,785.70x = 44,391,016,835.07
  5. Step 5: Solve for x
    x = 44,391,016,835.07/300,785.70
  6. Step 6: Final answer
    x = 147,583.53

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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.