Home / 281,835.20-388,935.76-160,992.48

Finding the Fourth Proportional to 281,835.20, 388,935.76 and 160,992.48

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Solution

The fourth proportional to 281,835.20, 388,935.76 and 160,992.48 is: 222,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.20 : 388,935.76 = 160,992.48 : x
  2. Step 2: Convert to fraction form
    281,835.20/388,935.76 = 160,992.48/x
  3. Step 3: Cross multiply
    281,835.20x = 388,935.76 × 160,992.48
  4. Step 4: Simplify right side
    281,835.20x = 62,615,732,563.08
  5. Step 5: Solve for x
    x = 62,615,732,563.08/281,835.20
  6. Step 6: Final answer
    x = 222,171.44

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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.