Home / 307,388.34-424,198.38-171,431.06

Finding the Fourth Proportional to 307,388.34, 424,198.38 and 171,431.06

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Solution

The fourth proportional to 307,388.34, 424,198.38 and 171,431.06 is: 236,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,388.34 : 424,198.38 = 171,431.06 : x
  2. Step 2: Convert to fraction form
    307,388.34/424,198.38 = 171,431.06/x
  3. Step 3: Cross multiply
    307,388.34x = 424,198.38 × 171,431.06
  4. Step 4: Simplify right side
    307,388.34x = 72,720,775,812.69
  5. Step 5: Solve for x
    x = 72,720,775,812.69/307,388.34
  6. Step 6: Final answer
    x = 236,576.23

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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.