Home / 318,021.48-477,118.26-107,659.44

Finding the Fourth Proportional to 318,021.48, 477,118.26 and 107,659.44

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Solution

The fourth proportional to 318,021.48, 477,118.26 and 107,659.44 is: 161,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,021.48 : 477,118.26 = 107,659.44 : x
  2. Step 2: Convert to fraction form
    318,021.48/477,118.26 = 107,659.44/x
  3. Step 3: Cross multiply
    318,021.48x = 477,118.26 × 107,659.44
  4. Step 4: Simplify right side
    318,021.48x = 51,366,284,685.37
  5. Step 5: Solve for x
    x = 51,366,284,685.37/318,021.48
  6. Step 6: Final answer
    x = 161,518.29

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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.