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Finding the Fourth Proportional to 297,817.20, 446,725.80 and 209,170.80

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Solution

The fourth proportional to 297,817.20, 446,725.80 and 209,170.80 is: 313,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,817.20 : 446,725.80 = 209,170.80 : x
  2. Step 2: Convert to fraction form
    297,817.20/446,725.80 = 209,170.80/x
  3. Step 3: Cross multiply
    297,817.20x = 446,725.80 × 209,170.80
  4. Step 4: Simplify right side
    297,817.20x = 93,441,992,966.64
  5. Step 5: Solve for x
    x = 93,441,992,966.64/297,817.20
  6. Step 6: Final answer
    x = 313,756.20

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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.