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Finding the Fourth Proportional to 321,097.74, 481,743.78 and 121,479.30

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Solution

The fourth proportional to 321,097.74, 481,743.78 and 121,479.30 is: 182,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,097.74 : 481,743.78 = 121,479.30 : x
  2. Step 2: Convert to fraction form
    321,097.74/481,743.78 = 121,479.30/x
  3. Step 3: Cross multiply
    321,097.74x = 481,743.78 × 121,479.30
  4. Step 4: Simplify right side
    321,097.74x = 58,521,897,173.75
  5. Step 5: Solve for x
    x = 58,521,897,173.75/321,097.74
  6. Step 6: Final answer
    x = 182,255.71

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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.