Home / 281,805.11-388,917.96-160,964.45

Finding the Fourth Proportional to 281,805.11, 388,917.96 and 160,964.45

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Solution

The fourth proportional to 281,805.11, 388,917.96 and 160,964.45 is: 222,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,805.11 : 388,917.96 = 160,964.45 : x
  2. Step 2: Convert to fraction form
    281,805.11/388,917.96 = 160,964.45/x
  3. Step 3: Cross multiply
    281,805.11x = 388,917.96 × 160,964.45
  4. Step 4: Simplify right side
    281,805.11x = 62,601,965,526.52
  5. Step 5: Solve for x
    x = 62,601,965,526.52/281,805.11
  6. Step 6: Final answer
    x = 222,146.31

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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.