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Finding the Fourth Proportional to 457,857.36, 631,843.02 and 253,939.32

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Solution

The fourth proportional to 457,857.36, 631,843.02 and 253,939.32 is: 350,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,857.36 : 631,843.02 = 253,939.32 : x
  2. Step 2: Convert to fraction form
    457,857.36/631,843.02 = 253,939.32/x
  3. Step 3: Cross multiply
    457,857.36x = 631,843.02 × 253,939.32
  4. Step 4: Simplify right side
    457,857.36x = 160,449,786,845.55
  5. Step 5: Solve for x
    x = 160,449,786,845.55/457,857.36
  6. Step 6: Final answer
    x = 350,436.19

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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.