Home / 278,126.87-383,619.24-268,867.96

Finding the Fourth Proportional to 278,126.87, 383,619.24 and 268,867.96

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Solution

The fourth proportional to 278,126.87, 383,619.24 and 268,867.96 is: 370,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,126.87 : 383,619.24 = 268,867.96 : x
  2. Step 2: Convert to fraction form
    278,126.87/383,619.24 = 268,867.96/x
  3. Step 3: Cross multiply
    278,126.87x = 383,619.24 × 268,867.96
  4. Step 4: Simplify right side
    278,126.87x = 103,142,921,516.50
  5. Step 5: Solve for x
    x = 103,142,921,516.50/278,126.87
  6. Step 6: Final answer
    x = 370,848.47

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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.