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Finding the Fourth Proportional to 255,870.05, 383,640.85 and 106,213.64

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Solution

The fourth proportional to 255,870.05, 383,640.85 and 106,213.64 is: 159,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,870.05 : 383,640.85 = 106,213.64 : x
  2. Step 2: Convert to fraction form
    255,870.05/383,640.85 = 106,213.64/x
  3. Step 3: Cross multiply
    255,870.05x = 383,640.85 × 106,213.64
  4. Step 4: Simplify right side
    255,870.05x = 40,747,891,824.76
  5. Step 5: Solve for x
    x = 40,747,891,824.76/255,870.05
  6. Step 6: Final answer
    x = 159,252.29

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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.