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Finding the Fourth Proportional to 300,785.95, 451,206.77 and 98,383.20

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Solution

The fourth proportional to 300,785.95, 451,206.77 and 98,383.20 is: 147,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,785.95 : 451,206.77 = 98,383.20 : x
  2. Step 2: Convert to fraction form
    300,785.95/451,206.77 = 98,383.20/x
  3. Step 3: Cross multiply
    300,785.95x = 451,206.77 × 98,383.20
  4. Step 4: Simplify right side
    300,785.95x = 44,391,166,530.36
  5. Step 5: Solve for x
    x = 44,391,166,530.36/300,785.95
  6. Step 6: Final answer
    x = 147,583.91

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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.