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Finding the Fourth Proportional to 297,220.40, 445,830.60 and 195,743.60

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Solution

The fourth proportional to 297,220.40, 445,830.60 and 195,743.60 is: 293,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,220.40 : 445,830.60 = 195,743.60 : x
  2. Step 2: Convert to fraction form
    297,220.40/445,830.60 = 195,743.60/x
  3. Step 3: Cross multiply
    297,220.40x = 445,830.60 × 195,743.60
  4. Step 4: Simplify right side
    297,220.40x = 87,268,486,634.16
  5. Step 5: Solve for x
    x = 87,268,486,634.16/297,220.40
  6. Step 6: Final answer
    x = 293,615.40

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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.