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Finding the Fourth Proportional to 321,096.60, 481,499.10 and 121,350.60

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Solution

The fourth proportional to 321,096.60, 481,499.10 and 121,350.60 is: 181,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,096.60 : 481,499.10 = 121,350.60 : x
  2. Step 2: Convert to fraction form
    321,096.60/481,499.10 = 121,350.60/x
  3. Step 3: Cross multiply
    321,096.60x = 481,499.10 × 121,350.60
  4. Step 4: Simplify right side
    321,096.60x = 58,430,204,684.46
  5. Step 5: Solve for x
    x = 58,430,204,684.46/321,096.60
  6. Step 6: Final answer
    x = 181,970.80

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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.