Home / 204,529.68-306,815.52-78,276.13

Finding the Fourth Proportional to 204,529.68, 306,815.52 and 78,276.13

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Solution

The fourth proportional to 204,529.68, 306,815.52 and 78,276.13 is: 117,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,529.68 : 306,815.52 = 78,276.13 : x
  2. Step 2: Convert to fraction form
    204,529.68/306,815.52 = 78,276.13/x
  3. Step 3: Cross multiply
    204,529.68x = 306,815.52 × 78,276.13
  4. Step 4: Simplify right side
    204,529.68x = 24,016,331,619.52
  5. Step 5: Solve for x
    x = 24,016,331,619.52/204,529.68
  6. Step 6: Final answer
    x = 117,422.23

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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.