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Finding the Fourth Proportional to 327,417.56, 491,077.68 and 90,735.56

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Solution

The fourth proportional to 327,417.56, 491,077.68 and 90,735.56 is: 136,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,417.56 : 491,077.68 = 90,735.56 : x
  2. Step 2: Convert to fraction form
    327,417.56/491,077.68 = 90,735.56/x
  3. Step 3: Cross multiply
    327,417.56x = 491,077.68 × 90,735.56
  4. Step 4: Simplify right side
    327,417.56x = 44,558,208,298.30
  5. Step 5: Solve for x
    x = 44,558,208,298.30/327,417.56
  6. Step 6: Final answer
    x = 136,089.86

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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.