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Finding the Fourth Proportional to 207,735.24, 286,694.87 and 122,879.64

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Solution

The fourth proportional to 207,735.24, 286,694.87 and 122,879.64 is: 169,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,735.24 : 286,694.87 = 122,879.64 : x
  2. Step 2: Convert to fraction form
    207,735.24/286,694.87 = 122,879.64/x
  3. Step 3: Cross multiply
    207,735.24x = 286,694.87 × 122,879.64
  4. Step 4: Simplify right side
    207,735.24x = 35,228,962,415.45
  5. Step 5: Solve for x
    x = 35,228,962,415.45/207,735.24
  6. Step 6: Final answer
    x = 169,585.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.