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Finding the Fourth Proportional to 218,613.52, 327,966.36 and 70,858

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Solution

The fourth proportional to 218,613.52, 327,966.36 and 70,858 is: 106,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,613.52 : 327,966.36 = 70,858 : x
  2. Step 2: Convert to fraction form
    218,613.52/327,966.36 = 70,858/x
  3. Step 3: Cross multiply
    218,613.52x = 327,966.36 × 70,858
  4. Step 4: Simplify right side
    218,613.52x = 23,239,040,336.88
  5. Step 5: Solve for x
    x = 23,239,040,336.88/218,613.52
  6. Step 6: Final answer
    x = 106,301.94

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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.