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Finding the Fourth Proportional to 255,782.70, 383,673.45 and 68,794.38

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Solution

The fourth proportional to 255,782.70, 383,673.45 and 68,794.38 is: 103,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,782.70 : 383,673.45 = 68,794.38 : x
  2. Step 2: Convert to fraction form
    255,782.70/383,673.45 = 68,794.38/x
  3. Step 3: Cross multiply
    255,782.70x = 383,673.45 × 68,794.38
  4. Step 4: Simplify right side
    255,782.70x = 26,394,577,115.21
  5. Step 5: Solve for x
    x = 26,394,577,115.21/255,782.70
  6. Step 6: Final answer
    x = 103,191.41

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1.5x scale

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.