Home / 281,450.28-388,410.18-154,137.96

Finding the Fourth Proportional to 281,450.28, 388,410.18 and 154,137.96

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Solution

The fourth proportional to 281,450.28, 388,410.18 and 154,137.96 is: 212,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,450.28 : 388,410.18 = 154,137.96 : x
  2. Step 2: Convert to fraction form
    281,450.28/388,410.18 = 154,137.96/x
  3. Step 3: Cross multiply
    281,450.28x = 388,410.18 × 154,137.96
  4. Step 4: Simplify right side
    281,450.28x = 59,868,752,788.43
  5. Step 5: Solve for x
    x = 59,868,752,788.43/281,450.28
  6. Step 6: Final answer
    x = 212,715.20

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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.