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Finding the Fourth Proportional to 426,770.96, 640,156.92 and 111,227.60

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Solution

The fourth proportional to 426,770.96, 640,156.92 and 111,227.60 is: 166,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,770.96 : 640,156.92 = 111,227.60 : x
  2. Step 2: Convert to fraction form
    426,770.96/640,156.92 = 111,227.60/x
  3. Step 3: Cross multiply
    426,770.96x = 640,156.92 × 111,227.60
  4. Step 4: Simplify right side
    426,770.96x = 71,203,117,834.99
  5. Step 5: Solve for x
    x = 71,203,117,834.99/426,770.96
  6. Step 6: Final answer
    x = 166,841.53

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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.