Home / 321,301.10-481,623.60-188,112.80

Finding the Fourth Proportional to 321,301.10, 481,623.60 and 188,112.80

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Solution

The fourth proportional to 321,301.10, 481,623.60 and 188,112.80 is: 281,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,301.10 : 481,623.60 = 188,112.80 : x
  2. Step 2: Convert to fraction form
    321,301.10/481,623.60 = 188,112.80/x
  3. Step 3: Cross multiply
    321,301.10x = 481,623.60 × 188,112.80
  4. Step 4: Simplify right side
    321,301.10x = 90,599,563,942.08
  5. Step 5: Solve for x
    x = 90,599,563,942.08/321,301.10
  6. Step 6: Final answer
    x = 281,977.14

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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.