Home / 305,984.31-458,975.68-81,344.64

Finding the Fourth Proportional to 305,984.31, 458,975.68 and 81,344.64

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Solution

The fourth proportional to 305,984.31, 458,975.68 and 81,344.64 is: 122,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,984.31 : 458,975.68 = 81,344.64 : x
  2. Step 2: Convert to fraction form
    305,984.31/458,975.68 = 81,344.64/x
  3. Step 3: Cross multiply
    305,984.31x = 458,975.68 × 81,344.64
  4. Step 4: Simplify right side
    305,984.31x = 37,335,211,458.36
  5. Step 5: Solve for x
    x = 37,335,211,458.36/305,984.31
  6. Step 6: Final answer
    x = 122,016.75

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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.