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Finding the Fourth Proportional to 218,609.60, 327,910.08 and 70,865.60

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Solution

The fourth proportional to 218,609.60, 327,910.08 and 70,865.60 is: 106,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,609.60 : 327,910.08 = 70,865.60 : x
  2. Step 2: Convert to fraction form
    218,609.60/327,910.08 = 70,865.60/x
  3. Step 3: Cross multiply
    218,609.60x = 327,910.08 × 70,865.60
  4. Step 4: Simplify right side
    218,609.60x = 23,237,544,565.25
  5. Step 5: Solve for x
    x = 23,237,544,565.25/218,609.60
  6. Step 6: Final answer
    x = 106,297.00

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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.