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Finding the Fourth Proportional to 275,935.01, 380,704.71 and 161,130.83

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Solution

The fourth proportional to 275,935.01, 380,704.71 and 161,130.83 is: 222,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,935.01 : 380,704.71 = 161,130.83 : x
  2. Step 2: Convert to fraction form
    275,935.01/380,704.71 = 161,130.83/x
  3. Step 3: Cross multiply
    275,935.01x = 380,704.71 × 161,130.83
  4. Step 4: Simplify right side
    275,935.01x = 61,343,264,003.69
  5. Step 5: Solve for x
    x = 61,343,264,003.69/275,935.01
  6. Step 6: Final answer
    x = 222,310.55

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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.