Home / 217,683.68-326,399.80-84,408.24

Finding the Fourth Proportional to 217,683.68, 326,399.80 and 84,408.24

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Solution

The fourth proportional to 217,683.68, 326,399.80 and 84,408.24 is: 126,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,683.68 : 326,399.80 = 84,408.24 : x
  2. Step 2: Convert to fraction form
    217,683.68/326,399.80 = 84,408.24/x
  3. Step 3: Cross multiply
    217,683.68x = 326,399.80 × 84,408.24
  4. Step 4: Simplify right side
    217,683.68x = 27,550,831,309.00
  5. Step 5: Solve for x
    x = 27,550,831,309.00/217,683.68
  6. Step 6: Final answer
    x = 126,563.61

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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.