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Finding the Fourth Proportional to 266,793.18, 400,190.49 and 109,021.65

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Solution

The fourth proportional to 266,793.18, 400,190.49 and 109,021.65 is: 163,532.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,793.18 : 400,190.49 = 109,021.65 : x
  2. Step 2: Convert to fraction form
    266,793.18/400,190.49 = 109,021.65/x
  3. Step 3: Cross multiply
    266,793.18x = 400,190.49 × 109,021.65
  4. Step 4: Simplify right side
    266,793.18x = 43,629,427,534.11
  5. Step 5: Solve for x
    x = 43,629,427,534.11/266,793.18
  6. Step 6: Final answer
    x = 163,532.77

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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.