Home / 220,127.28-330,190.88-208,907.96

Finding the Fourth Proportional to 220,127.28, 330,190.88 and 208,907.96

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Solution

The fourth proportional to 220,127.28, 330,190.88 and 208,907.96 is: 313,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,127.28 : 330,190.88 = 208,907.96 : x
  2. Step 2: Convert to fraction form
    220,127.28/330,190.88 = 208,907.96/x
  3. Step 3: Cross multiply
    220,127.28x = 330,190.88 × 208,907.96
  4. Step 4: Simplify right side
    220,127.28x = 68,979,503,151.40
  5. Step 5: Solve for x
    x = 68,979,503,151.40/220,127.28
  6. Step 6: Final answer
    x = 313,361.90

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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.