Home / 205,823.64-309,252.24-130,976.40

Finding the Fourth Proportional to 205,823.64, 309,252.24 and 130,976.40

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Solution

The fourth proportional to 205,823.64, 309,252.24 and 130,976.40 is: 196,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,823.64 : 309,252.24 = 130,976.40 : x
  2. Step 2: Convert to fraction form
    205,823.64/309,252.24 = 130,976.40/x
  3. Step 3: Cross multiply
    205,823.64x = 309,252.24 × 130,976.40
  4. Step 4: Simplify right side
    205,823.64x = 40,504,745,087.14
  5. Step 5: Solve for x
    x = 40,504,745,087.14/205,823.64
  6. Step 6: Final answer
    x = 196,793.45

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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.