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Finding the Fourth Proportional to 266,183.70, 399,275.55 and 206,697.30

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Solution

The fourth proportional to 266,183.70, 399,275.55 and 206,697.30 is: 310,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,183.70 : 399,275.55 = 206,697.30 : x
  2. Step 2: Convert to fraction form
    266,183.70/399,275.55 = 206,697.30/x
  3. Step 3: Cross multiply
    266,183.70x = 399,275.55 × 206,697.30
  4. Step 4: Simplify right side
    266,183.70x = 82,529,178,141.02
  5. Step 5: Solve for x
    x = 82,529,178,141.02/266,183.70
  6. Step 6: Final answer
    x = 310,045.95

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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.