Home / 491,939.70-738,237.60-225,563.10

Finding the Fourth Proportional to 491,939.70, 738,237.60 and 225,563.10

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Solution

The fourth proportional to 491,939.70, 738,237.60 and 225,563.10 is: 338,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,939.70 : 738,237.60 = 225,563.10 : x
  2. Step 2: Convert to fraction form
    491,939.70/738,237.60 = 225,563.10/x
  3. Step 3: Cross multiply
    491,939.70x = 738,237.60 × 225,563.10
  4. Step 4: Simplify right side
    491,939.70x = 166,519,161,592.56
  5. Step 5: Solve for x
    x = 166,519,161,592.56/491,939.70
  6. Step 6: Final answer
    x = 338,495.07

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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.