Home / 217,625.32-326,498.94-77,398.12

Finding the Fourth Proportional to 217,625.32, 326,498.94 and 77,398.12

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Solution

The fourth proportional to 217,625.32, 326,498.94 and 77,398.12 is: 116,118.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,625.32 : 326,498.94 = 77,398.12 : x
  2. Step 2: Convert to fraction form
    217,625.32/326,498.94 = 77,398.12/x
  3. Step 3: Cross multiply
    217,625.32x = 326,498.94 × 77,398.12
  4. Step 4: Simplify right side
    217,625.32x = 25,270,404,137.99
  5. Step 5: Solve for x
    x = 25,270,404,137.99/217,625.32
  6. Step 6: Final answer
    x = 116,118.86

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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.