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Finding the Fourth Proportional to 236,168.40, 354,252.60 and 206,643.90

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Solution

The fourth proportional to 236,168.40, 354,252.60 and 206,643.90 is: 309,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,168.40 : 354,252.60 = 206,643.90 : x
  2. Step 2: Convert to fraction form
    236,168.40/354,252.60 = 206,643.90/x
  3. Step 3: Cross multiply
    236,168.40x = 354,252.60 × 206,643.90
  4. Step 4: Simplify right side
    236,168.40x = 73,204,138,849.14
  5. Step 5: Solve for x
    x = 73,204,138,849.14/236,168.40
  6. Step 6: Final answer
    x = 309,965.85

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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.