Home / 281,020.56-387,631.08-196,106.64

Finding the Fourth Proportional to 281,020.56, 387,631.08 and 196,106.64

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Solution

The fourth proportional to 281,020.56, 387,631.08 and 196,106.64 is: 270,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,020.56 : 387,631.08 = 196,106.64 : x
  2. Step 2: Convert to fraction form
    281,020.56/387,631.08 = 196,106.64/x
  3. Step 3: Cross multiply
    281,020.56x = 387,631.08 × 196,106.64
  4. Step 4: Simplify right side
    281,020.56x = 76,017,028,658.37
  5. Step 5: Solve for x
    x = 76,017,028,658.37/281,020.56
  6. Step 6: Final answer
    x = 270,503.44

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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.