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Finding the Fourth Proportional to 266,626.89, 399,940.74 and 106,774.81

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Solution

The fourth proportional to 266,626.89, 399,940.74 and 106,774.81 is: 160,162.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,626.89 : 399,940.74 = 106,774.81 : x
  2. Step 2: Convert to fraction form
    266,626.89/399,940.74 = 106,774.81/x
  3. Step 3: Cross multiply
    266,626.89x = 399,940.74 × 106,774.81
  4. Step 4: Simplify right side
    266,626.89x = 42,703,595,524.91
  5. Step 5: Solve for x
    x = 42,703,595,524.91/266,626.89
  6. Step 6: Final answer
    x = 160,162.37

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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.