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Finding the Fourth Proportional to 266,676.57, 400,015.25 and 108,905.03

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Solution

The fourth proportional to 266,676.57, 400,015.25 and 108,905.03 is: 163,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,676.57 : 400,015.25 = 108,905.03 : x
  2. Step 2: Convert to fraction form
    266,676.57/400,015.25 = 108,905.03/x
  3. Step 3: Cross multiply
    266,676.57x = 400,015.25 × 108,905.03
  4. Step 4: Simplify right side
    266,676.57x = 43,563,672,165.56
  5. Step 5: Solve for x
    x = 43,563,672,165.56/266,676.57
  6. Step 6: Final answer
    x = 163,357.70

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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.