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Finding the Fourth Proportional to 266,164.30, 399,246.45 and 262,665.10

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Solution

The fourth proportional to 266,164.30, 399,246.45 and 262,665.10 is: 393,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,164.30 : 399,246.45 = 262,665.10 : x
  2. Step 2: Convert to fraction form
    266,164.30/399,246.45 = 262,665.10/x
  3. Step 3: Cross multiply
    266,164.30x = 399,246.45 × 262,665.10
  4. Step 4: Simplify right side
    266,164.30x = 104,868,108,713.90
  5. Step 5: Solve for x
    x = 104,868,108,713.90/266,164.30
  6. Step 6: Final answer
    x = 393,997.65

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Similar ratio
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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.