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Finding the Fourth Proportional to 220,846.40, 331,269.60 and 115,697.60

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Solution

The fourth proportional to 220,846.40, 331,269.60 and 115,697.60 is: 173,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,846.40 : 331,269.60 = 115,697.60 : x
  2. Step 2: Convert to fraction form
    220,846.40/331,269.60 = 115,697.60/x
  3. Step 3: Cross multiply
    220,846.40x = 331,269.60 × 115,697.60
  4. Step 4: Simplify right side
    220,846.40x = 38,327,097,672.96
  5. Step 5: Solve for x
    x = 38,327,097,672.96/220,846.40
  6. Step 6: Final answer
    x = 173,546.40

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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.