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Finding the Fourth Proportional to 297,976.66, 446,955.09 and 129,497.15

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Solution

The fourth proportional to 297,976.66, 446,955.09 and 129,497.15 is: 194,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,976.66 : 446,955.09 = 129,497.15 : x
  2. Step 2: Convert to fraction form
    297,976.66/446,955.09 = 129,497.15/x
  3. Step 3: Cross multiply
    297,976.66x = 446,955.09 × 129,497.15
  4. Step 4: Simplify right side
    297,976.66x = 57,879,408,450.64
  5. Step 5: Solve for x
    x = 57,879,408,450.64/297,976.66
  6. Step 6: Final answer
    x = 194,241.42

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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.