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Finding the Fourth Proportional to 453,863.43, 680,896.26 and 138,344.94

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Solution

The fourth proportional to 453,863.43, 680,896.26 and 138,344.94 is: 207,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,863.43 : 680,896.26 = 138,344.94 : x
  2. Step 2: Convert to fraction form
    453,863.43/680,896.26 = 138,344.94/x
  3. Step 3: Cross multiply
    453,863.43x = 680,896.26 × 138,344.94
  4. Step 4: Simplify right side
    453,863.43x = 94,198,552,235.92
  5. Step 5: Solve for x
    x = 94,198,552,235.92/453,863.43
  6. Step 6: Final answer
    x = 207,548.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.