Home / 217,609.56-326,345.22-69,831

Finding the Fourth Proportional to 217,609.56, 326,345.22 and 69,831

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Solution

The fourth proportional to 217,609.56, 326,345.22 and 69,831 is: 104,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,609.56 : 326,345.22 = 69,831 : x
  2. Step 2: Convert to fraction form
    217,609.56/326,345.22 = 69,831/x
  3. Step 3: Cross multiply
    217,609.56x = 326,345.22 × 69,831
  4. Step 4: Simplify right side
    217,609.56x = 22,789,013,057.82
  5. Step 5: Solve for x
    x = 22,789,013,057.82/217,609.56
  6. Step 6: Final answer
    x = 104,724.32

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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.