Home / 330,286.32-455,787.66-192,456.72

Finding the Fourth Proportional to 330,286.32, 455,787.66 and 192,456.72

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Solution

The fourth proportional to 330,286.32, 455,787.66 and 192,456.72 is: 265,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,286.32 : 455,787.66 = 192,456.72 : x
  2. Step 2: Convert to fraction form
    330,286.32/455,787.66 = 192,456.72/x
  3. Step 3: Cross multiply
    330,286.32x = 455,787.66 × 192,456.72
  4. Step 4: Simplify right side
    330,286.32x = 87,719,398,340.17
  5. Step 5: Solve for x
    x = 87,719,398,340.17/330,286.32
  6. Step 6: Final answer
    x = 265,585.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.