Home / 217,633.05-326,252.61-77,358.87

Finding the Fourth Proportional to 217,633.05, 326,252.61 and 77,358.87

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Solution

The fourth proportional to 217,633.05, 326,252.61 and 77,358.87 is: 115,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,633.05 : 326,252.61 = 77,358.87 : x
  2. Step 2: Convert to fraction form
    217,633.05/326,252.61 = 77,358.87/x
  3. Step 3: Cross multiply
    217,633.05x = 326,252.61 × 77,358.87
  4. Step 4: Simplify right side
    217,633.05x = 25,238,533,244.15
  5. Step 5: Solve for x
    x = 25,238,533,244.15/217,633.05
  6. Step 6: Final answer
    x = 115,968.29

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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.