Home / 321,329.10-481,665.60-188,140.80

Finding the Fourth Proportional to 321,329.10, 481,665.60 and 188,140.80

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Solution

The fourth proportional to 321,329.10, 481,665.60 and 188,140.80 is: 282,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,329.10 : 481,665.60 = 188,140.80 : x
  2. Step 2: Convert to fraction form
    321,329.10/481,665.60 = 188,140.80/x
  3. Step 3: Cross multiply
    321,329.10x = 481,665.60 × 188,140.80
  4. Step 4: Simplify right side
    321,329.10x = 90,620,951,316.48
  5. Step 5: Solve for x
    x = 90,620,951,316.48/321,329.10
  6. Step 6: Final answer
    x = 282,019.12

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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.