Home / 329,619.36-493,495.11-216,960.78

Finding the Fourth Proportional to 329,619.36, 493,495.11 and 216,960.78

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Solution

The fourth proportional to 329,619.36, 493,495.11 and 216,960.78 is: 324,826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,619.36 : 493,495.11 = 216,960.78 : x
  2. Step 2: Convert to fraction form
    329,619.36/493,495.11 = 216,960.78/x
  3. Step 3: Cross multiply
    329,619.36x = 493,495.11 × 216,960.78
  4. Step 4: Simplify right side
    329,619.36x = 107,069,083,991.79
  5. Step 5: Solve for x
    x = 107,069,083,991.79/329,619.36
  6. Step 6: Final answer
    x = 324,826.44

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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.