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Finding the Fourth Proportional to 299,999.89, 447,353.42 and 297,299.62

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Solution

The fourth proportional to 299,999.89, 447,353.42 and 297,299.62 is: 443,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,999.89 : 447,353.42 = 297,299.62 : x
  2. Step 2: Convert to fraction form
    299,999.89/447,353.42 = 297,299.62/x
  3. Step 3: Cross multiply
    299,999.89x = 447,353.42 × 297,299.62
  4. Step 4: Simplify right side
    299,999.89x = 132,998,001,771.70
  5. Step 5: Solve for x
    x = 132,998,001,771.70/299,999.89
  6. Step 6: Final answer
    x = 443,326.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.