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Finding the Fourth Proportional to 327,091.70, 490,653.39 and 90,429.14

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Solution

The fourth proportional to 327,091.70, 490,653.39 and 90,429.14 is: 135,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,091.70 : 490,653.39 = 90,429.14 : x
  2. Step 2: Convert to fraction form
    327,091.70/490,653.39 = 90,429.14/x
  3. Step 3: Cross multiply
    327,091.70x = 490,653.39 × 90,429.14
  4. Step 4: Simplify right side
    327,091.70x = 44,369,364,095.78
  5. Step 5: Solve for x
    x = 44,369,364,095.78/327,091.70
  6. Step 6: Final answer
    x = 135,648.09

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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.