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Finding the Fourth Proportional to 290,757.68, 436,321.28 and 150,516.48

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Solution

The fourth proportional to 290,757.68, 436,321.28 and 150,516.48 is: 225,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,757.68 : 436,321.28 = 150,516.48 : x
  2. Step 2: Convert to fraction form
    290,757.68/436,321.28 = 150,516.48/x
  3. Step 3: Cross multiply
    290,757.68x = 436,321.28 × 150,516.48
  4. Step 4: Simplify right side
    290,757.68x = 65,673,543,214.69
  5. Step 5: Solve for x
    x = 65,673,543,214.69/290,757.68
  6. Step 6: Final answer
    x = 225,870.36

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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.