Home / 213,790.43-320,796.30-155,110.43

Finding the Fourth Proportional to 213,790.43, 320,796.30 and 155,110.43

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Solution

The fourth proportional to 213,790.43, 320,796.30 and 155,110.43 is: 232,745.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,790.43 : 320,796.30 = 155,110.43 : x
  2. Step 2: Convert to fraction form
    213,790.43/320,796.30 = 155,110.43/x
  3. Step 3: Cross multiply
    213,790.43x = 320,796.30 × 155,110.43
  4. Step 4: Simplify right side
    213,790.43x = 49,758,852,035.41
  5. Step 5: Solve for x
    x = 49,758,852,035.41/213,790.43
  6. Step 6: Final answer
    x = 232,745.93

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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.