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Finding the Fourth Proportional to 457,699.11, 631,662.18 and 253,813.96

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Solution

The fourth proportional to 457,699.11, 631,662.18 and 253,813.96 is: 350,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,699.11 : 631,662.18 = 253,813.96 : x
  2. Step 2: Convert to fraction form
    457,699.11/631,662.18 = 253,813.96/x
  3. Step 3: Cross multiply
    457,699.11x = 631,662.18 × 253,813.96
  4. Step 4: Simplify right side
    457,699.11x = 160,324,679,288.03
  5. Step 5: Solve for x
    x = 160,324,679,288.03/457,699.11
  6. Step 6: Final answer
    x = 350,284.01

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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.