Home / 289,109.30-433,705.26-89,446.73

Finding the Fourth Proportional to 289,109.30, 433,705.26 and 89,446.73

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Solution

The fourth proportional to 289,109.30, 433,705.26 and 89,446.73 is: 134,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,109.30 : 433,705.26 = 89,446.73 : x
  2. Step 2: Convert to fraction form
    289,109.30/433,705.26 = 89,446.73/x
  3. Step 3: Cross multiply
    289,109.30x = 433,705.26 × 89,446.73
  4. Step 4: Simplify right side
    289,109.30x = 38,793,517,290.80
  5. Step 5: Solve for x
    x = 38,793,517,290.80/289,109.30
  6. Step 6: Final answer
    x = 134,182.88

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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.