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Finding the Fourth Proportional to 276,310.80, 414,466.20 and 206,326.80

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Solution

The fourth proportional to 276,310.80, 414,466.20 and 206,326.80 is: 309,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,310.80 : 414,466.20 = 206,326.80 : x
  2. Step 2: Convert to fraction form
    276,310.80/414,466.20 = 206,326.80/x
  3. Step 3: Cross multiply
    276,310.80x = 414,466.20 × 206,326.80
  4. Step 4: Simplify right side
    276,310.80x = 85,515,484,754.16
  5. Step 5: Solve for x
    x = 85,515,484,754.16/276,310.80
  6. Step 6: Final answer
    x = 309,490.20

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1.5x scale

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.