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Finding the Fourth Proportional to 285,751.30, 428,626.89 and 96,195.76

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Solution

The fourth proportional to 285,751.30, 428,626.89 and 96,195.76 is: 144,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,751.30 : 428,626.89 = 96,195.76 : x
  2. Step 2: Convert to fraction form
    285,751.30/428,626.89 = 96,195.76/x
  3. Step 3: Cross multiply
    285,751.30x = 428,626.89 × 96,195.76
  4. Step 4: Simplify right side
    285,751.30x = 41,232,089,439.99
  5. Step 5: Solve for x
    x = 41,232,089,439.99/285,751.30
  6. Step 6: Final answer
    x = 144,293.62

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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.