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Finding the Fourth Proportional to 321,164.70, 481,560.33 and 121,500.72

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Solution

The fourth proportional to 321,164.70, 481,560.33 and 121,500.72 is: 182,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,164.70 : 481,560.33 = 121,500.72 : x
  2. Step 2: Convert to fraction form
    321,164.70/481,560.33 = 121,500.72/x
  3. Step 3: Cross multiply
    321,164.70x = 481,560.33 × 121,500.72
  4. Step 4: Simplify right side
    321,164.70x = 58,509,926,818.44
  5. Step 5: Solve for x
    x = 58,509,926,818.44/321,164.70
  6. Step 6: Final answer
    x = 182,180.44

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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.