Home / 231,826.63-320,030.33-155,395.66

Finding the Fourth Proportional to 231,826.63, 320,030.33 and 155,395.66

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Solution

The fourth proportional to 231,826.63, 320,030.33 and 155,395.66 is: 214,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,826.63 : 320,030.33 = 155,395.66 : x
  2. Step 2: Convert to fraction form
    231,826.63/320,030.33 = 155,395.66/x
  3. Step 3: Cross multiply
    231,826.63x = 320,030.33 × 155,395.66
  4. Step 4: Simplify right side
    231,826.63x = 49,731,324,556.16
  5. Step 5: Solve for x
    x = 49,731,324,556.16/231,826.63
  6. Step 6: Final answer
    x = 214,519.46

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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.