Home / 290,099.28-400,487.31-225,424.02

Finding the Fourth Proportional to 290,099.28, 400,487.31 and 225,424.02

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Solution

The fourth proportional to 290,099.28, 400,487.31 and 225,424.02 is: 311,201.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,099.28 : 400,487.31 = 225,424.02 : x
  2. Step 2: Convert to fraction form
    290,099.28/400,487.31 = 225,424.02/x
  3. Step 3: Cross multiply
    290,099.28x = 400,487.31 × 225,424.02
  4. Step 4: Simplify right side
    290,099.28x = 90,279,459,379.19
  5. Step 5: Solve for x
    x = 90,279,459,379.19/290,099.28
  6. Step 6: Final answer
    x = 311,201.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.