Home / 258,256.73-387,163.24-89,755.17

Finding the Fourth Proportional to 258,256.73, 387,163.24 and 89,755.17

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Solution

The fourth proportional to 258,256.73, 387,163.24 and 89,755.17 is: 134,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,256.73 : 387,163.24 = 89,755.17 : x
  2. Step 2: Convert to fraction form
    258,256.73/387,163.24 = 89,755.17/x
  3. Step 3: Cross multiply
    258,256.73x = 387,163.24 × 89,755.17
  4. Step 4: Simplify right side
    258,256.73x = 34,749,902,199.56
  5. Step 5: Solve for x
    x = 34,749,902,199.56/258,256.73
  6. Step 6: Final answer
    x = 134,555.65

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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.