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Finding the Fourth Proportional to 281,768.30, 388,847.00 and 154,450.88

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Solution

The fourth proportional to 281,768.30, 388,847.00 and 154,450.88 is: 213,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,768.30 : 388,847.00 = 154,450.88 : x
  2. Step 2: Convert to fraction form
    281,768.30/388,847.00 = 154,450.88/x
  3. Step 3: Cross multiply
    281,768.30x = 388,847.00 × 154,450.88
  4. Step 4: Simplify right side
    281,768.30x = 60,057,759,777.25
  5. Step 5: Solve for x
    x = 60,057,759,777.25/281,768.30
  6. Step 6: Final answer
    x = 213,145.91

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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.