Home / 221,448.20-331,826.70-191,726.60

Finding the Fourth Proportional to 221,448.20, 331,826.70 and 191,726.60

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Solution

The fourth proportional to 221,448.20, 331,826.70 and 191,726.60 is: 287,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,448.20 : 331,826.70 = 191,726.60 : x
  2. Step 2: Convert to fraction form
    221,448.20/331,826.70 = 191,726.60/x
  3. Step 3: Cross multiply
    221,448.20x = 331,826.70 × 191,726.60
  4. Step 4: Simplify right side
    221,448.20x = 63,620,004,980.22
  5. Step 5: Solve for x
    x = 63,620,004,980.22/221,448.20
  6. Step 6: Final answer
    x = 287,290.68

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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.