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Finding the Fourth Proportional to 235,979.80, 353,451.30 and 204,875.80

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Solution

The fourth proportional to 235,979.80, 353,451.30 and 204,875.80 is: 306,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,979.80 : 353,451.30 = 204,875.80 : x
  2. Step 2: Convert to fraction form
    235,979.80/353,451.30 = 204,875.80/x
  3. Step 3: Cross multiply
    235,979.80x = 353,451.30 × 204,875.80
  4. Step 4: Simplify right side
    235,979.80x = 72,413,617,848.54
  5. Step 5: Solve for x
    x = 72,413,617,848.54/235,979.80
  6. Step 6: Final answer
    x = 306,863.63

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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.