Home / 321,559.49-482,268.83-131,833.16

Finding the Fourth Proportional to 321,559.49, 482,268.83 and 131,833.16

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Solution

The fourth proportional to 321,559.49, 482,268.83 and 131,833.16 is: 197,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,559.49 : 482,268.83 = 131,833.16 : x
  2. Step 2: Convert to fraction form
    321,559.49/482,268.83 = 131,833.16/x
  3. Step 3: Cross multiply
    321,559.49x = 482,268.83 × 131,833.16
  4. Step 4: Simplify right side
    321,559.49x = 63,579,020,757.89
  5. Step 5: Solve for x
    x = 63,579,020,757.89/321,559.49
  6. Step 6: Final answer
    x = 197,720.87

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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.