Home / 379,027.85-523,104.30-215,724.06

Finding the Fourth Proportional to 379,027.85, 523,104.30 and 215,724.06

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Solution

The fourth proportional to 379,027.85, 523,104.30 and 215,724.06 is: 297,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,027.85 : 523,104.30 = 215,724.06 : x
  2. Step 2: Convert to fraction form
    379,027.85/523,104.30 = 215,724.06/x
  3. Step 3: Cross multiply
    379,027.85x = 523,104.30 × 215,724.06
  4. Step 4: Simplify right side
    379,027.85x = 112,846,183,399.46
  5. Step 5: Solve for x
    x = 112,846,183,399.46/379,027.85
  6. Step 6: Final answer
    x = 297,725.31

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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.