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Finding the Fourth Proportional to 289,028.91, 433,584.96 and 89,366.73

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Solution

The fourth proportional to 289,028.91, 433,584.96 and 89,366.73 is: 134,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,028.91 : 433,584.96 = 89,366.73 : x
  2. Step 2: Convert to fraction form
    289,028.91/433,584.96 = 89,366.73/x
  3. Step 3: Cross multiply
    289,028.91x = 433,584.96 × 89,366.73
  4. Step 4: Simplify right side
    289,028.91x = 38,748,070,052.38
  5. Step 5: Solve for x
    x = 38,748,070,052.38/289,028.91
  6. Step 6: Final answer
    x = 134,062.96

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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.