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Finding the Fourth Proportional to 297,458.20, 445,409.70 and 191,704.60

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Solution

The fourth proportional to 297,458.20, 445,409.70 and 191,704.60 is: 287,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,458.20 : 445,409.70 = 191,704.60 : x
  2. Step 2: Convert to fraction form
    297,458.20/445,409.70 = 191,704.60/x
  3. Step 3: Cross multiply
    297,458.20x = 445,409.70 × 191,704.60
  4. Step 4: Simplify right side
    297,458.20x = 85,387,088,374.62
  5. Step 5: Solve for x
    x = 85,387,088,374.62/297,458.20
  6. Step 6: Final answer
    x = 287,055.76

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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.