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Finding the Fourth Proportional to 321,453.65, 482,146.65 and 131,934.06

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Solution

The fourth proportional to 321,453.65, 482,146.65 and 131,934.06 is: 197,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,453.65 : 482,146.65 = 131,934.06 : x
  2. Step 2: Convert to fraction form
    321,453.65/482,146.65 = 131,934.06/x
  3. Step 3: Cross multiply
    321,453.65x = 482,146.65 × 131,934.06
  4. Step 4: Simplify right side
    321,453.65x = 63,611,565,049.90
  5. Step 5: Solve for x
    x = 63,611,565,049.90/321,453.65
  6. Step 6: Final answer
    x = 197,887.21

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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.