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Finding the Fourth Proportional to 307,371.74, 424,174.85 and 171,414.27

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Solution

The fourth proportional to 307,371.74, 424,174.85 and 171,414.27 is: 236,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,371.74 : 424,174.85 = 171,414.27 : x
  2. Step 2: Convert to fraction form
    307,371.74/424,174.85 = 171,414.27/x
  3. Step 3: Cross multiply
    307,371.74x = 424,174.85 × 171,414.27
  4. Step 4: Simplify right side
    307,371.74x = 72,709,622,050.84
  5. Step 5: Solve for x
    x = 72,709,622,050.84/307,371.74
  6. Step 6: Final answer
    x = 236,552.73

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1.5x scale

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.