Home / 321,561.48-482,271.82-131,835.16

Finding the Fourth Proportional to 321,561.48, 482,271.82 and 131,835.16

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Solution

The fourth proportional to 321,561.48, 482,271.82 and 131,835.16 is: 197,723.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,561.48 : 482,271.82 = 131,835.16 : x
  2. Step 2: Convert to fraction form
    321,561.48/482,271.82 = 131,835.16/x
  3. Step 3: Cross multiply
    321,561.48x = 482,271.82 × 131,835.16
  4. Step 4: Simplify right side
    321,561.48x = 63,580,382,553.19
  5. Step 5: Solve for x
    x = 63,580,382,553.19/321,561.48
  6. Step 6: Final answer
    x = 197,723.88

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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.