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Finding the Fourth Proportional to 307,882.54, 424,885.11 and 171,911.89

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Solution

The fourth proportional to 307,882.54, 424,885.11 and 171,911.89 is: 237,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,882.54 : 424,885.11 = 171,911.89 : x
  2. Step 2: Convert to fraction form
    307,882.54/424,885.11 = 171,911.89/x
  3. Step 3: Cross multiply
    307,882.54x = 424,885.11 × 171,911.89
  4. Step 4: Simplify right side
    307,882.54x = 73,042,802,292.96
  5. Step 5: Solve for x
    x = 73,042,802,292.96/307,882.54
  6. Step 6: Final answer
    x = 237,242.43

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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.