Home / 221,272.20-331,611.75-207,100.44

Finding the Fourth Proportional to 221,272.20, 331,611.75 and 207,100.44

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Solution

The fourth proportional to 221,272.20, 331,611.75 and 207,100.44 is: 310,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,272.20 : 331,611.75 = 207,100.44 : x
  2. Step 2: Convert to fraction form
    221,272.20/331,611.75 = 207,100.44/x
  3. Step 3: Cross multiply
    221,272.20x = 331,611.75 × 207,100.44
  4. Step 4: Simplify right side
    221,272.20x = 68,676,939,334.17
  5. Step 5: Solve for x
    x = 68,676,939,334.17/221,272.20
  6. Step 6: Final answer
    x = 310,373.10

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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.