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Finding the Fourth Proportional to 331,504.82, 457,479.80 and 188,265.90

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Solution

The fourth proportional to 331,504.82, 457,479.80 and 188,265.90 is: 259,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,504.82 : 457,479.80 = 188,265.90 : x
  2. Step 2: Convert to fraction form
    331,504.82/457,479.80 = 188,265.90/x
  3. Step 3: Cross multiply
    331,504.82x = 457,479.80 × 188,265.90
  4. Step 4: Simplify right side
    331,504.82x = 86,127,847,759.04
  5. Step 5: Solve for x
    x = 86,127,847,759.04/331,504.82
  6. Step 6: Final answer
    x = 259,808.74

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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.