Home / 323,736.30-485,719.65-312,216.30

Finding the Fourth Proportional to 323,736.30, 485,719.65 and 312,216.30

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Solution

The fourth proportional to 323,736.30, 485,719.65 and 312,216.30 is: 468,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,736.30 : 485,719.65 = 312,216.30 : x
  2. Step 2: Convert to fraction form
    323,736.30/485,719.65 = 312,216.30/x
  3. Step 3: Cross multiply
    323,736.30x = 485,719.65 × 312,216.30
  4. Step 4: Simplify right side
    323,736.30x = 151,649,591,960.30
  5. Step 5: Solve for x
    x = 151,649,591,960.30/323,736.30
  6. Step 6: Final answer
    x = 468,435.55

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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.