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Finding the Fourth Proportional to 297,880.70, 446,821.05 and 209,234.30

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Solution

The fourth proportional to 297,880.70, 446,821.05 and 209,234.30 is: 313,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,880.70 : 446,821.05 = 209,234.30 : x
  2. Step 2: Convert to fraction form
    297,880.70/446,821.05 = 209,234.30/x
  3. Step 3: Cross multiply
    297,880.70x = 446,821.05 × 209,234.30
  4. Step 4: Simplify right side
    297,880.70x = 93,490,289,622.02
  5. Step 5: Solve for x
    x = 93,490,289,622.02/297,880.70
  6. Step 6: Final answer
    x = 313,851.45

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Similar ratio
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1.5x scale

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.