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Finding the Fourth Proportional to 236,836.80, 354,736.80 and 205,732.80

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Solution

The fourth proportional to 236,836.80, 354,736.80 and 205,732.80 is: 308,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,836.80 : 354,736.80 = 205,732.80 : x
  2. Step 2: Convert to fraction form
    236,836.80/354,736.80 = 205,732.80/x
  3. Step 3: Cross multiply
    236,836.80x = 354,736.80 × 205,732.80
  4. Step 4: Simplify right side
    236,836.80x = 72,980,995,127.04
  5. Step 5: Solve for x
    x = 72,980,995,127.04/236,836.80
  6. Step 6: Final answer
    x = 308,148.88

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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.