Home / 312,785.75-432,003.06-205,833.25

Finding the Fourth Proportional to 312,785.75, 432,003.06 and 205,833.25

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Solution

The fourth proportional to 312,785.75, 432,003.06 and 205,833.25 is: 284,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,785.75 : 432,003.06 = 205,833.25 : x
  2. Step 2: Convert to fraction form
    312,785.75/432,003.06 = 205,833.25/x
  3. Step 3: Cross multiply
    312,785.75x = 432,003.06 × 205,833.25
  4. Step 4: Simplify right side
    312,785.75x = 88,920,590,660.56
  5. Step 5: Solve for x
    x = 88,920,590,660.56/312,785.75
  6. Step 6: Final answer
    x = 284,285.94

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1.5x scale

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.