Home / 268,975.40-370,839.18-220,396.72

Finding the Fourth Proportional to 268,975.40, 370,839.18 and 220,396.72

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Solution

The fourth proportional to 268,975.40, 370,839.18 and 220,396.72 is: 303,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,975.40 : 370,839.18 = 220,396.72 : x
  2. Step 2: Convert to fraction form
    268,975.40/370,839.18 = 220,396.72/x
  3. Step 3: Cross multiply
    268,975.40x = 370,839.18 × 220,396.72
  4. Step 4: Simplify right side
    268,975.40x = 81,731,738,919.49
  5. Step 5: Solve for x
    x = 81,731,738,919.49/268,975.40
  6. Step 6: Final answer
    x = 303,863.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.