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Finding the Fourth Proportional to 215,372.34, 323,648.73 and 203,144.22

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Solution

The fourth proportional to 215,372.34, 323,648.73 and 203,144.22 is: 305,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,372.34 : 323,648.73 = 203,144.22 : x
  2. Step 2: Convert to fraction form
    215,372.34/323,648.73 = 203,144.22/x
  3. Step 3: Cross multiply
    215,372.34x = 323,648.73 × 203,144.22
  4. Step 4: Simplify right side
    215,372.34x = 65,747,368,809.84
  5. Step 5: Solve for x
    x = 65,747,368,809.84/215,372.34
  6. Step 6: Final answer
    x = 305,273.04

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1.5x scale

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.