Home / 231,019.56-346,491.36-81,224.64

Finding the Fourth Proportional to 231,019.56, 346,491.36 and 81,224.64

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Solution

The fourth proportional to 231,019.56, 346,491.36 and 81,224.64 is: 121,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,019.56 : 346,491.36 = 81,224.64 : x
  2. Step 2: Convert to fraction form
    231,019.56/346,491.36 = 81,224.64/x
  3. Step 3: Cross multiply
    231,019.56x = 346,491.36 × 81,224.64
  4. Step 4: Simplify right side
    231,019.56x = 28,143,635,979.11
  5. Step 5: Solve for x
    x = 28,143,635,979.11/231,019.56
  6. Step 6: Final answer
    x = 121,823.61

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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.