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Finding the Fourth Proportional to 307,469.56, 424,243.18 and 186,674.36

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Solution

The fourth proportional to 307,469.56, 424,243.18 and 186,674.36 is: 257,571.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,469.56 : 424,243.18 = 186,674.36 : x
  2. Step 2: Convert to fraction form
    307,469.56/424,243.18 = 186,674.36/x
  3. Step 3: Cross multiply
    307,469.56x = 424,243.18 × 186,674.36
  4. Step 4: Simplify right side
    307,469.56x = 79,195,324,110.86
  5. Step 5: Solve for x
    x = 79,195,324,110.86/307,469.56
  6. Step 6: Final answer
    x = 257,571.27

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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.