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Finding the Fourth Proportional to 307,472.09, 424,330.49 and 169,650.34

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Solution

The fourth proportional to 307,472.09, 424,330.49 and 169,650.34 is: 234,127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,472.09 : 424,330.49 = 169,650.34 : x
  2. Step 2: Convert to fraction form
    307,472.09/424,330.49 = 169,650.34/x
  3. Step 3: Cross multiply
    307,472.09x = 424,330.49 × 169,650.34
  4. Step 4: Simplify right side
    307,472.09x = 71,987,811,264.17
  5. Step 5: Solve for x
    x = 71,987,811,264.17/307,472.09
  6. Step 6: Final answer
    x = 234,127.96

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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.