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Finding the Fourth Proportional to 321,780.70, 482,671.05 and 203,067.10

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Solution

The fourth proportional to 321,780.70, 482,671.05 and 203,067.10 is: 304,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,780.70 : 482,671.05 = 203,067.10 : x
  2. Step 2: Convert to fraction form
    321,780.70/482,671.05 = 203,067.10/x
  3. Step 3: Cross multiply
    321,780.70x = 482,671.05 × 203,067.10
  4. Step 4: Simplify right side
    321,780.70x = 98,014,610,377.46
  5. Step 5: Solve for x
    x = 98,014,610,377.46/321,780.70
  6. Step 6: Final answer
    x = 304,600.65

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Similar ratio
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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.