Home / 217,216.20-325,586.70-76,902.60

Finding the Fourth Proportional to 217,216.20, 325,586.70 and 76,902.60

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Solution

The fourth proportional to 217,216.20, 325,586.70 and 76,902.60 is: 115,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,216.20 : 325,586.70 = 76,902.60 : x
  2. Step 2: Convert to fraction form
    217,216.20/325,586.70 = 76,902.60/x
  3. Step 3: Cross multiply
    217,216.20x = 325,586.70 × 76,902.60
  4. Step 4: Simplify right side
    217,216.20x = 25,038,463,755.42
  5. Step 5: Solve for x
    x = 25,038,463,755.42/217,216.20
  6. Step 6: Final answer
    x = 115,269.78

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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.