Home / 421,010.82-631,965.78-181,243.39

Finding the Fourth Proportional to 421,010.82, 631,965.78 and 181,243.39

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Solution

The fourth proportional to 421,010.82, 631,965.78 and 181,243.39 is: 272,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,010.82 : 631,965.78 = 181,243.39 : x
  2. Step 2: Convert to fraction form
    421,010.82/631,965.78 = 181,243.39/x
  3. Step 3: Cross multiply
    421,010.82x = 631,965.78 × 181,243.39
  4. Step 4: Simplify right side
    421,010.82x = 114,539,620,331.19
  5. Step 5: Solve for x
    x = 114,539,620,331.19/421,010.82
  6. Step 6: Final answer
    x = 272,058.61

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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.