Home / 321,248.28-481,533.31-107,813.78

Finding the Fourth Proportional to 321,248.28, 481,533.31 and 107,813.78

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Solution

The fourth proportional to 321,248.28, 481,533.31 and 107,813.78 is: 161,606.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,248.28 : 481,533.31 = 107,813.78 : x
  2. Step 2: Convert to fraction form
    321,248.28/481,533.31 = 107,813.78/x
  3. Step 3: Cross multiply
    321,248.28x = 481,533.31 × 107,813.78
  4. Step 4: Simplify right side
    321,248.28x = 51,915,927,982.03
  5. Step 5: Solve for x
    x = 51,915,927,982.03/321,248.28
  6. Step 6: Final answer
    x = 161,606.87

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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.