Home / 255,787.70-383,680.95-68,799.38

Finding the Fourth Proportional to 255,787.70, 383,680.95 and 68,799.38

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Solution

The fourth proportional to 255,787.70, 383,680.95 and 68,799.38 is: 103,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,787.70 : 383,680.95 = 68,799.38 : x
  2. Step 2: Convert to fraction form
    255,787.70/383,680.95 = 68,799.38/x
  3. Step 3: Cross multiply
    255,787.70x = 383,680.95 × 68,799.38
  4. Step 4: Simplify right side
    255,787.70x = 26,397,011,477.81
  5. Step 5: Solve for x
    x = 26,397,011,477.81/255,787.70
  6. Step 6: Final answer
    x = 103,198.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.