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Finding the Fourth Proportional to 281,333.30, 388,239.96 and 154,008.89

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Solution

The fourth proportional to 281,333.30, 388,239.96 and 154,008.89 is: 212,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,333.30 : 388,239.96 = 154,008.89 : x
  2. Step 2: Convert to fraction form
    281,333.30/388,239.96 = 154,008.89/x
  3. Step 3: Cross multiply
    281,333.30x = 388,239.96 × 154,008.89
  4. Step 4: Simplify right side
    281,333.30x = 59,792,405,293.24
  5. Step 5: Solve for x
    x = 59,792,405,293.24/281,333.30
  6. Step 6: Final answer
    x = 212,532.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.