Home / 306,299.24-422,631-178,950.23

Finding the Fourth Proportional to 306,299.24, 422,631 and 178,950.23

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Solution

The fourth proportional to 306,299.24, 422,631 and 178,950.23 is: 246,915.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,299.24 : 422,631 = 178,950.23 : x
  2. Step 2: Convert to fraction form
    306,299.24/422,631 = 178,950.23/x
  3. Step 3: Cross multiply
    306,299.24x = 422,631 × 178,950.23
  4. Step 4: Simplify right side
    306,299.24x = 75,629,912,541.98
  5. Step 5: Solve for x
    x = 75,629,912,541.98/306,299.24
  6. Step 6: Final answer
    x = 246,915.12

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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.