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Finding the Fourth Proportional to 266,414.89, 399,277.88 and 199,328.67

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Solution

The fourth proportional to 266,414.89, 399,277.88 and 199,328.67 is: 298,735.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,414.89 : 399,277.88 = 199,328.67 : x
  2. Step 2: Convert to fraction form
    266,414.89/399,277.88 = 199,328.67/x
  3. Step 3: Cross multiply
    266,414.89x = 399,277.88 × 199,328.67
  4. Step 4: Simplify right side
    266,414.89x = 79,587,525,787.79
  5. Step 5: Solve for x
    x = 79,587,525,787.79/266,414.89
  6. Step 6: Final answer
    x = 298,735.28

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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.