Home / 217,406.22-300,023.69-131,353.26

Finding the Fourth Proportional to 217,406.22, 300,023.69 and 131,353.26

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Solution

The fourth proportional to 217,406.22, 300,023.69 and 131,353.26 is: 181,269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,406.22 : 300,023.69 = 131,353.26 : x
  2. Step 2: Convert to fraction form
    217,406.22/300,023.69 = 131,353.26/x
  3. Step 3: Cross multiply
    217,406.22x = 300,023.69 × 131,353.26
  4. Step 4: Simplify right side
    217,406.22x = 39,409,089,101.96
  5. Step 5: Solve for x
    x = 39,409,089,101.96/217,406.22
  6. Step 6: Final answer
    x = 181,269.37

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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.