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Finding the Fourth Proportional to 307,757.37, 424,704 and 171,790.14

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Solution

The fourth proportional to 307,757.37, 424,704 and 171,790.14 is: 237,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,757.37 : 424,704 = 171,790.14 : x
  2. Step 2: Convert to fraction form
    307,757.37/424,704 = 171,790.14/x
  3. Step 3: Cross multiply
    307,757.37x = 424,704 × 171,790.14
  4. Step 4: Simplify right side
    307,757.37x = 72,959,959,618.56
  5. Step 5: Solve for x
    x = 72,959,959,618.56/307,757.37
  6. Step 6: Final answer
    x = 237,069.74

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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.