Home / 258,051.79-387,204.50-115,997.43

Finding the Fourth Proportional to 258,051.79, 387,204.50 and 115,997.43

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Solution

The fourth proportional to 258,051.79, 387,204.50 and 115,997.43 is: 174,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,051.79 : 387,204.50 = 115,997.43 : x
  2. Step 2: Convert to fraction form
    258,051.79/387,204.50 = 115,997.43/x
  3. Step 3: Cross multiply
    258,051.79x = 387,204.50 × 115,997.43
  4. Step 4: Simplify right side
    258,051.79x = 44,914,728,626.45
  5. Step 5: Solve for x
    x = 44,914,728,626.45/258,051.79
  6. Step 6: Final answer
    x = 174,053.16

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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.