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Finding the Fourth Proportional to 266,855.44, 400,311.10 and 86,954.86

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Solution

The fourth proportional to 266,855.44, 400,311.10 and 86,954.86 is: 130,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,855.44 : 400,311.10 = 86,954.86 : x
  2. Step 2: Convert to fraction form
    266,855.44/400,311.10 = 86,954.86/x
  3. Step 3: Cross multiply
    266,855.44x = 400,311.10 × 86,954.86
  4. Step 4: Simplify right side
    266,855.44x = 34,808,994,764.86
  5. Step 5: Solve for x
    x = 34,808,994,764.86/266,855.44
  6. Step 6: Final answer
    x = 130,441.39

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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.