Home / 327,372.36-491,069.10-90,717.32

Finding the Fourth Proportional to 327,372.36, 491,069.10 and 90,717.32

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Solution

The fourth proportional to 327,372.36, 491,069.10 and 90,717.32 is: 136,078.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,372.36 : 491,069.10 = 90,717.32 : x
  2. Step 2: Convert to fraction form
    327,372.36/491,069.10 = 90,717.32/x
  3. Step 3: Cross multiply
    327,372.36x = 491,069.10 × 90,717.32
  4. Step 4: Simplify right side
    327,372.36x = 44,548,472,686.81
  5. Step 5: Solve for x
    x = 44,548,472,686.81/327,372.36
  6. Step 6: Final answer
    x = 136,078.91

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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.