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Finding the Fourth Proportional to 273,989, 378,119.22 and 166,541.60

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Solution

The fourth proportional to 273,989, 378,119.22 and 166,541.60 is: 229,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,989 : 378,119.22 = 166,541.60 : x
  2. Step 2: Convert to fraction form
    273,989/378,119.22 = 166,541.60/x
  3. Step 3: Cross multiply
    273,989x = 378,119.22 × 166,541.60
  4. Step 4: Simplify right side
    273,989x = 62,972,579,889.55
  5. Step 5: Solve for x
    x = 62,972,579,889.55/273,989
  6. Step 6: Final answer
    x = 229,836.16

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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.