Home / 321,318.14-481,866.02-131,724.68

Finding the Fourth Proportional to 321,318.14, 481,866.02 and 131,724.68

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Solution

The fourth proportional to 321,318.14, 481,866.02 and 131,724.68 is: 197,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,318.14 : 481,866.02 = 131,724.68 : x
  2. Step 2: Convert to fraction form
    321,318.14/481,866.02 = 131,724.68/x
  3. Step 3: Cross multiply
    321,318.14x = 481,866.02 × 131,724.68
  4. Step 4: Simplify right side
    321,318.14x = 63,473,646,628.75
  5. Step 5: Solve for x
    x = 63,473,646,628.75/321,318.14
  6. Step 6: Final answer
    x = 197,541.44

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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.