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Finding the Fourth Proportional to 324,772.70, 487,072.65 and 100,132.70

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Solution

The fourth proportional to 324,772.70, 487,072.65 and 100,132.70 is: 150,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,772.70 : 487,072.65 = 100,132.70 : x
  2. Step 2: Convert to fraction form
    324,772.70/487,072.65 = 100,132.70/x
  3. Step 3: Cross multiply
    324,772.70x = 487,072.65 × 100,132.70
  4. Step 4: Simplify right side
    324,772.70x = 48,771,899,540.66
  5. Step 5: Solve for x
    x = 48,771,899,540.66/324,772.70
  6. Step 6: Final answer
    x = 150,172.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.