Home / 281,431.10-388,374.27-154,105.58

Finding the Fourth Proportional to 281,431.10, 388,374.27 and 154,105.58

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Solution

The fourth proportional to 281,431.10, 388,374.27 and 154,105.58 is: 212,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,431.10 : 388,374.27 = 154,105.58 : x
  2. Step 2: Convert to fraction form
    281,431.10/388,374.27 = 154,105.58/x
  3. Step 3: Cross multiply
    281,431.10x = 388,374.27 × 154,105.58
  4. Step 4: Simplify right side
    281,431.10x = 59,850,642,135.43
  5. Step 5: Solve for x
    x = 59,850,642,135.43/281,431.10
  6. Step 6: Final answer
    x = 212,665.35

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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.