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Finding the Fourth Proportional to 204,636.64, 306,952.80 and 79,976.56

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Solution

The fourth proportional to 204,636.64, 306,952.80 and 79,976.56 is: 119,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,636.64 : 306,952.80 = 79,976.56 : x
  2. Step 2: Convert to fraction form
    204,636.64/306,952.80 = 79,976.56/x
  3. Step 3: Cross multiply
    204,636.64x = 306,952.80 × 79,976.56
  4. Step 4: Simplify right side
    204,636.64x = 24,549,029,026.37
  5. Step 5: Solve for x
    x = 24,549,029,026.37/204,636.64
  6. Step 6: Final answer
    x = 119,964.00

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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.