Home / 321,454.16-482,147.40-131,934.56

Finding the Fourth Proportional to 321,454.16, 482,147.40 and 131,934.56

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Solution

The fourth proportional to 321,454.16, 482,147.40 and 131,934.56 is: 197,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,454.16 : 482,147.40 = 131,934.56 : x
  2. Step 2: Convert to fraction form
    321,454.16/482,147.40 = 131,934.56/x
  3. Step 3: Cross multiply
    321,454.16x = 482,147.40 × 131,934.56
  4. Step 4: Simplify right side
    321,454.16x = 63,611,905,074.14
  5. Step 5: Solve for x
    x = 63,611,905,074.14/321,454.16
  6. Step 6: Final answer
    x = 197,887.95

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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.