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Finding the Fourth Proportional to 217,996.60, 327,119.12 and 84,859.60

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Solution

The fourth proportional to 217,996.60, 327,119.12 and 84,859.60 is: 127,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,996.60 : 327,119.12 = 84,859.60 : x
  2. Step 2: Convert to fraction form
    217,996.60/327,119.12 = 84,859.60/x
  3. Step 3: Cross multiply
    217,996.60x = 327,119.12 × 84,859.60
  4. Step 4: Simplify right side
    217,996.60x = 27,759,197,675.55
  5. Step 5: Solve for x
    x = 27,759,197,675.55/217,996.60
  6. Step 6: Final answer
    x = 127,337.76

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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.