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Finding the Fourth Proportional to 251,634, 347,140.49 and 149,601.56

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Solution

The fourth proportional to 251,634, 347,140.49 and 149,601.56 is: 206,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,634 : 347,140.49 = 149,601.56 : x
  2. Step 2: Convert to fraction form
    251,634/347,140.49 = 149,601.56/x
  3. Step 3: Cross multiply
    251,634x = 347,140.49 × 149,601.56
  4. Step 4: Simplify right side
    251,634x = 51,932,760,085.02
  5. Step 5: Solve for x
    x = 51,932,760,085.02/251,634
  6. Step 6: Final answer
    x = 206,382.13

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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.