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Finding the Fourth Proportional to 297,466.20, 445,421.70 and 191,712.60

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Solution

The fourth proportional to 297,466.20, 445,421.70 and 191,712.60 is: 287,067.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,466.20 : 445,421.70 = 191,712.60 : x
  2. Step 2: Convert to fraction form
    297,466.20/445,421.70 = 191,712.60/x
  3. Step 3: Cross multiply
    297,466.20x = 445,421.70 × 191,712.60
  4. Step 4: Simplify right side
    297,466.20x = 85,392,952,203.42
  5. Step 5: Solve for x
    x = 85,392,952,203.42/297,466.20
  6. Step 6: Final answer
    x = 287,067.75

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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.