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Finding the Fourth Proportional to 217,103.36, 325,675.68 and 67,345.28

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Solution

The fourth proportional to 217,103.36, 325,675.68 and 67,345.28 is: 101,024.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,103.36 : 325,675.68 = 67,345.28 : x
  2. Step 2: Convert to fraction form
    217,103.36/325,675.68 = 67,345.28/x
  3. Step 3: Cross multiply
    217,103.36x = 325,675.68 × 67,345.28
  4. Step 4: Simplify right side
    217,103.36x = 21,932,719,858.79
  5. Step 5: Solve for x
    x = 21,932,719,858.79/217,103.36
  6. Step 6: Final answer
    x = 101,024.32

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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.