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Finding the Fourth Proportional to 321,734.20, 482,601.30 and 203,927.80

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Solution

The fourth proportional to 321,734.20, 482,601.30 and 203,927.80 is: 305,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,734.20 : 482,601.30 = 203,927.80 : x
  2. Step 2: Convert to fraction form
    321,734.20/482,601.30 = 203,927.80/x
  3. Step 3: Cross multiply
    321,734.20x = 482,601.30 × 203,927.80
  4. Step 4: Simplify right side
    321,734.20x = 98,415,821,386.14
  5. Step 5: Solve for x
    x = 98,415,821,386.14/321,734.20
  6. Step 6: Final answer
    x = 305,891.70

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1.5x scale

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.