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Finding the Fourth Proportional to 422,500.40, 633,750.60 and 212,062.40

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Solution

The fourth proportional to 422,500.40, 633,750.60 and 212,062.40 is: 318,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,500.40 : 633,750.60 = 212,062.40 : x
  2. Step 2: Convert to fraction form
    422,500.40/633,750.60 = 212,062.40/x
  3. Step 3: Cross multiply
    422,500.40x = 633,750.60 × 212,062.40
  4. Step 4: Simplify right side
    422,500.40x = 134,394,673,237.44
  5. Step 5: Solve for x
    x = 134,394,673,237.44/422,500.40
  6. Step 6: Final answer
    x = 318,093.60

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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.