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Finding the Fourth Proportional to 397,273.70, 595,910.55 and 255,556.10

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Solution

The fourth proportional to 397,273.70, 595,910.55 and 255,556.10 is: 383,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,273.70 : 595,910.55 = 255,556.10 : x
  2. Step 2: Convert to fraction form
    397,273.70/595,910.55 = 255,556.10/x
  3. Step 3: Cross multiply
    397,273.70x = 595,910.55 × 255,556.10
  4. Step 4: Simplify right side
    397,273.70x = 152,288,576,106.86
  5. Step 5: Solve for x
    x = 152,288,576,106.86/397,273.70
  6. Step 6: Final answer
    x = 383,334.15

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Similar ratio
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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.