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Finding the Fourth Proportional to 351,308.98, 526,799.44 and 126,639.82

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Solution

The fourth proportional to 351,308.98, 526,799.44 and 126,639.82 is: 189,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,308.98 : 526,799.44 = 126,639.82 : x
  2. Step 2: Convert to fraction form
    351,308.98/526,799.44 = 126,639.82/x
  3. Step 3: Cross multiply
    351,308.98x = 526,799.44 × 126,639.82
  4. Step 4: Simplify right side
    351,308.98x = 66,713,786,257.70
  5. Step 5: Solve for x
    x = 66,713,786,257.70/351,308.98
  6. Step 6: Final answer
    x = 189,900.60

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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.