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Finding the Fourth Proportional to 266,788.62, 400,183.61 and 109,017.09

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Solution

The fourth proportional to 266,788.62, 400,183.61 and 109,017.09 is: 163,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,788.62 : 400,183.61 = 109,017.09 : x
  2. Step 2: Convert to fraction form
    266,788.62/400,183.61 = 109,017.09/x
  3. Step 3: Cross multiply
    266,788.62x = 400,183.61 × 109,017.09
  4. Step 4: Simplify right side
    266,788.62x = 43,626,852,082.81
  5. Step 5: Solve for x
    x = 43,626,852,082.81/266,788.62
  6. Step 6: Final answer
    x = 163,525.91

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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.