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Finding the Fourth Proportional to 300,000.89, 447,354.91 and 297,300.62

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Solution

The fourth proportional to 300,000.89, 447,354.91 and 297,300.62 is: 443,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,000.89 : 447,354.91 = 297,300.62 : x
  2. Step 2: Convert to fraction form
    300,000.89/447,354.91 = 297,300.62/x
  3. Step 3: Cross multiply
    300,000.89x = 447,354.91 × 297,300.62
  4. Step 4: Simplify right side
    300,000.89x = 132,998,892,103.04
  5. Step 5: Solve for x
    x = 132,998,892,103.04/300,000.89
  6. Step 6: Final answer
    x = 443,328.33

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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.