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Finding the Fourth Proportional to 266,779.88, 400,170.49 and 109,008.33

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Solution

The fourth proportional to 266,779.88, 400,170.49 and 109,008.33 is: 163,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,779.88 : 400,170.49 = 109,008.33 : x
  2. Step 2: Convert to fraction form
    266,779.88/400,170.49 = 109,008.33/x
  3. Step 3: Cross multiply
    266,779.88x = 400,170.49 × 109,008.33
  4. Step 4: Simplify right side
    266,779.88x = 43,621,917,921.15
  5. Step 5: Solve for x
    x = 43,621,917,921.15/266,779.88
  6. Step 6: Final answer
    x = 163,512.77

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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.