Home / 281,558.83-388,551.26-154,238.95

Finding the Fourth Proportional to 281,558.83, 388,551.26 and 154,238.95

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Solution

The fourth proportional to 281,558.83, 388,551.26 and 154,238.95 is: 212,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,558.83 : 388,551.26 = 154,238.95 : x
  2. Step 2: Convert to fraction form
    281,558.83/388,551.26 = 154,238.95/x
  3. Step 3: Cross multiply
    281,558.83x = 388,551.26 × 154,238.95
  4. Step 4: Simplify right side
    281,558.83x = 59,929,737,592.38
  5. Step 5: Solve for x
    x = 59,929,737,592.38/281,558.83
  6. Step 6: Final answer
    x = 212,849.79

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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.