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Finding the Fourth Proportional to 289,528.56, 434,455.92 and 226,170.90

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Solution

The fourth proportional to 289,528.56, 434,455.92 and 226,170.90 is: 339,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,528.56 : 434,455.92 = 226,170.90 : x
  2. Step 2: Convert to fraction form
    289,528.56/434,455.92 = 226,170.90/x
  3. Step 3: Cross multiply
    289,528.56x = 434,455.92 × 226,170.90
  4. Step 4: Simplify right side
    289,528.56x = 98,261,286,436.73
  5. Step 5: Solve for x
    x = 98,261,286,436.73/289,528.56
  6. Step 6: Final answer
    x = 339,383.74

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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.