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Finding the Fourth Proportional to 274,607.38, 378,762.74 and 252,019.26

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Solution

The fourth proportional to 274,607.38, 378,762.74 and 252,019.26 is: 347,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,607.38 : 378,762.74 = 252,019.26 : x
  2. Step 2: Convert to fraction form
    274,607.38/378,762.74 = 252,019.26/x
  3. Step 3: Cross multiply
    274,607.38x = 378,762.74 × 252,019.26
  4. Step 4: Simplify right side
    274,607.38x = 95,455,505,450.37
  5. Step 5: Solve for x
    x = 95,455,505,450.37/274,607.38
  6. Step 6: Final answer
    x = 347,607.21

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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.