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Finding the Fourth Proportional to 274,933.80, 379,300.40 and 171,507.81

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Solution

The fourth proportional to 274,933.80, 379,300.40 and 171,507.81 is: 236,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,933.80 : 379,300.40 = 171,507.81 : x
  2. Step 2: Convert to fraction form
    274,933.80/379,300.40 = 171,507.81/x
  3. Step 3: Cross multiply
    274,933.80x = 379,300.40 × 171,507.81
  4. Step 4: Simplify right side
    274,933.80x = 65,052,980,078.59
  5. Step 5: Solve for x
    x = 65,052,980,078.59/274,933.80
  6. Step 6: Final answer
    x = 236,613.25

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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.