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Finding the Fourth Proportional to 283,540.20, 425,310.30 and 259,045.80

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Solution

The fourth proportional to 283,540.20, 425,310.30 and 259,045.80 is: 388,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,540.20 : 425,310.30 = 259,045.80 : x
  2. Step 2: Convert to fraction form
    283,540.20/425,310.30 = 259,045.80/x
  3. Step 3: Cross multiply
    283,540.20x = 425,310.30 × 259,045.80
  4. Step 4: Simplify right side
    283,540.20x = 110,174,846,911.74
  5. Step 5: Solve for x
    x = 110,174,846,911.74/283,540.20
  6. Step 6: Final answer
    x = 388,568.70

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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.