Home / 306,222.28-422,704.92-204,210.88

Finding the Fourth Proportional to 306,222.28, 422,704.92 and 204,210.88

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Solution

The fourth proportional to 306,222.28, 422,704.92 and 204,210.88 is: 281,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,222.28 : 422,704.92 = 204,210.88 : x
  2. Step 2: Convert to fraction form
    306,222.28/422,704.92 = 204,210.88/x
  3. Step 3: Cross multiply
    306,222.28x = 422,704.92 × 204,210.88
  4. Step 4: Simplify right side
    306,222.28x = 86,320,943,693.53
  5. Step 5: Solve for x
    x = 86,320,943,693.53/306,222.28
  6. Step 6: Final answer
    x = 281,889.82

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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.