Home / 312,787.25-432,005.13-205,834.75

Finding the Fourth Proportional to 312,787.25, 432,005.13 and 205,834.75

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Solution

The fourth proportional to 312,787.25, 432,005.13 and 205,834.75 is: 284,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,787.25 : 432,005.13 = 205,834.75 : x
  2. Step 2: Convert to fraction form
    312,787.25/432,005.13 = 205,834.75/x
  3. Step 3: Cross multiply
    312,787.25x = 432,005.13 × 205,834.75
  4. Step 4: Simplify right side
    312,787.25x = 88,921,667,932.27
  5. Step 5: Solve for x
    x = 88,921,667,932.27/312,787.25
  6. Step 6: Final answer
    x = 284,288.02

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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.