Home / 283,779.21-391,208.26-223,244.64

Finding the Fourth Proportional to 283,779.21, 391,208.26 and 223,244.64

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Solution

The fourth proportional to 283,779.21, 391,208.26 and 223,244.64 is: 307,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,779.21 : 391,208.26 = 223,244.64 : x
  2. Step 2: Convert to fraction form
    283,779.21/391,208.26 = 223,244.64/x
  3. Step 3: Cross multiply
    283,779.21x = 391,208.26 × 223,244.64
  4. Step 4: Simplify right side
    283,779.21x = 87,335,147,168.73
  5. Step 5: Solve for x
    x = 87,335,147,168.73/283,779.21
  6. Step 6: Final answer
    x = 307,757.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.