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Finding the Fourth Proportional to 422,339.21, 633,503.53 and 102,493.73

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Solution

The fourth proportional to 422,339.21, 633,503.53 and 102,493.73 is: 153,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,339.21 : 633,503.53 = 102,493.73 : x
  2. Step 2: Convert to fraction form
    422,339.21/633,503.53 = 102,493.73/x
  3. Step 3: Cross multiply
    422,339.21x = 633,503.53 × 102,493.73
  4. Step 4: Simplify right side
    422,339.21x = 64,930,140,014.10
  5. Step 5: Solve for x
    x = 64,930,140,014.10/422,339.21
  6. Step 6: Final answer
    x = 153,739.31

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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.