Home / 320,731.17-442,610.19-173,556.03

Finding the Fourth Proportional to 320,731.17, 442,610.19 and 173,556.03

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Solution

The fourth proportional to 320,731.17, 442,610.19 and 173,556.03 is: 239,507.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,731.17 : 442,610.19 = 173,556.03 : x
  2. Step 2: Convert to fraction form
    320,731.17/442,610.19 = 173,556.03/x
  3. Step 3: Cross multiply
    320,731.17x = 442,610.19 × 173,556.03
  4. Step 4: Simplify right side
    320,731.17x = 76,817,667,413.95
  5. Step 5: Solve for x
    x = 76,817,667,413.95/320,731.17
  6. Step 6: Final answer
    x = 239,507.96

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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.