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Finding the Fourth Proportional to 297,819.60, 446,729.40 and 213,838.80

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Solution

The fourth proportional to 297,819.60, 446,729.40 and 213,838.80 is: 320,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,819.60 : 446,729.40 = 213,838.80 : x
  2. Step 2: Convert to fraction form
    297,819.60/446,729.40 = 213,838.80/x
  3. Step 3: Cross multiply
    297,819.60x = 446,729.40 × 213,838.80
  4. Step 4: Simplify right side
    297,819.60x = 95,528,078,820.72
  5. Step 5: Solve for x
    x = 95,528,078,820.72/297,819.60
  6. Step 6: Final answer
    x = 320,758.20

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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.