Home / 389,072.97-536,743.26-227,856.51

Finding the Fourth Proportional to 389,072.97, 536,743.26 and 227,856.51

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Solution

The fourth proportional to 389,072.97, 536,743.26 and 227,856.51 is: 314,338.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,072.97 : 536,743.26 = 227,856.51 : x
  2. Step 2: Convert to fraction form
    389,072.97/536,743.26 = 227,856.51/x
  3. Step 3: Cross multiply
    389,072.97x = 536,743.26 × 227,856.51
  4. Step 4: Simplify right side
    389,072.97x = 122,300,445,989.62
  5. Step 5: Solve for x
    x = 122,300,445,989.62/389,072.97
  6. Step 6: Final answer
    x = 314,338.07

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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.