Home / 389,112.20-536,883.38-236,147

Finding the Fourth Proportional to 389,112.20, 536,883.38 and 236,147

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Solution

The fourth proportional to 389,112.20, 536,883.38 and 236,147 is: 325,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,112.20 : 536,883.38 = 236,147 : x
  2. Step 2: Convert to fraction form
    389,112.20/536,883.38 = 236,147/x
  3. Step 3: Cross multiply
    389,112.20x = 536,883.38 × 236,147
  4. Step 4: Simplify right side
    389,112.20x = 126,783,399,536.86
  5. Step 5: Solve for x
    x = 126,783,399,536.86/389,112.20
  6. Step 6: Final answer
    x = 325,827.36

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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.