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Finding the Fourth Proportional to 266,883.96, 400,308.66 and 100,667.64

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Solution

The fourth proportional to 266,883.96, 400,308.66 and 100,667.64 is: 150,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,883.96 : 400,308.66 = 100,667.64 : x
  2. Step 2: Convert to fraction form
    266,883.96/400,308.66 = 100,667.64/x
  3. Step 3: Cross multiply
    266,883.96x = 400,308.66 × 100,667.64
  4. Step 4: Simplify right side
    266,883.96x = 40,298,128,073.76
  5. Step 5: Solve for x
    x = 40,298,128,073.76/266,883.96
  6. Step 6: Final answer
    x = 150,994.94

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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.