Home / 281,744.21-388,684.82-186,383.72

Finding the Fourth Proportional to 281,744.21, 388,684.82 and 186,383.72

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Solution

The fourth proportional to 281,744.21, 388,684.82 and 186,383.72 is: 257,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,744.21 : 388,684.82 = 186,383.72 : x
  2. Step 2: Convert to fraction form
    281,744.21/388,684.82 = 186,383.72/x
  3. Step 3: Cross multiply
    281,744.21x = 388,684.82 × 186,383.72
  4. Step 4: Simplify right side
    281,744.21x = 72,444,519,783.79
  5. Step 5: Solve for x
    x = 72,444,519,783.79/281,744.21
  6. Step 6: Final answer
    x = 257,128.70

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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.