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Finding the Fourth Proportional to 281,674.36, 388,710.78 and 154,349.96

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Solution

The fourth proportional to 281,674.36, 388,710.78 and 154,349.96 is: 213,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,674.36 : 388,710.78 = 154,349.96 : x
  2. Step 2: Convert to fraction form
    281,674.36/388,710.78 = 154,349.96/x
  3. Step 3: Cross multiply
    281,674.36x = 388,710.78 × 154,349.96
  4. Step 4: Simplify right side
    281,674.36x = 59,997,493,344.57
  5. Step 5: Solve for x
    x = 59,997,493,344.57/281,674.36
  6. Step 6: Final answer
    x = 213,003.03

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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.