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Finding the Fourth Proportional to 279,902.59, 386,027.89 and 236,507.75

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Solution

The fourth proportional to 279,902.59, 386,027.89 and 236,507.75 is: 326,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,902.59 : 386,027.89 = 236,507.75 : x
  2. Step 2: Convert to fraction form
    279,902.59/386,027.89 = 236,507.75/x
  3. Step 3: Cross multiply
    279,902.59x = 386,027.89 × 236,507.75
  4. Step 4: Simplify right side
    279,902.59x = 91,298,588,074.95
  5. Step 5: Solve for x
    x = 91,298,588,074.95/279,902.59
  6. Step 6: Final answer
    x = 326,179.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.