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Finding the Fourth Proportional to 331,498.40, 457,451.88 and 188,239.52

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Solution

The fourth proportional to 331,498.40, 457,451.88 and 188,239.52 is: 259,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,498.40 : 457,451.88 = 188,239.52 : x
  2. Step 2: Convert to fraction form
    331,498.40/457,451.88 = 188,239.52/x
  3. Step 3: Cross multiply
    331,498.40x = 457,451.88 × 188,239.52
  4. Step 4: Simplify right side
    331,498.40x = 86,110,522,314.30
  5. Step 5: Solve for x
    x = 86,110,522,314.30/331,498.40
  6. Step 6: Final answer
    x = 259,761.50

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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.