Home / 217,961.88-326,291.04-133,456.20

Finding the Fourth Proportional to 217,961.88, 326,291.04 and 133,456.20

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Solution

The fourth proportional to 217,961.88, 326,291.04 and 133,456.20 is: 199,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,961.88 : 326,291.04 = 133,456.20 : x
  2. Step 2: Convert to fraction form
    217,961.88/326,291.04 = 133,456.20/x
  3. Step 3: Cross multiply
    217,961.88x = 326,291.04 × 133,456.20
  4. Step 4: Simplify right side
    217,961.88x = 43,545,562,292.45
  5. Step 5: Solve for x
    x = 43,545,562,292.45/217,961.88
  6. Step 6: Final answer
    x = 199,785.22

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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.