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Finding the Fourth Proportional to 307,469.50, 424,326.92 and 169,647.75

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Solution

The fourth proportional to 307,469.50, 424,326.92 and 169,647.75 is: 234,124.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,469.50 : 424,326.92 = 169,647.75 : x
  2. Step 2: Convert to fraction form
    307,469.50/424,326.92 = 169,647.75/x
  3. Step 3: Cross multiply
    307,469.50x = 424,326.92 × 169,647.75
  4. Step 4: Simplify right side
    307,469.50x = 71,986,107,242.43
  5. Step 5: Solve for x
    x = 71,986,107,242.43/307,469.50
  6. Step 6: Final answer
    x = 234,124.38

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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.