Home / 216,231.09-298,205.33-135,667.41

Finding the Fourth Proportional to 216,231.09, 298,205.33 and 135,667.41

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Solution

The fourth proportional to 216,231.09, 298,205.33 and 135,667.41 is: 187,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,231.09 : 298,205.33 = 135,667.41 : x
  2. Step 2: Convert to fraction form
    216,231.09/298,205.33 = 135,667.41/x
  3. Step 3: Cross multiply
    216,231.09x = 298,205.33 × 135,667.41
  4. Step 4: Simplify right side
    216,231.09x = 40,456,744,090.96
  5. Step 5: Solve for x
    x = 40,456,744,090.96/216,231.09
  6. Step 6: Final answer
    x = 187,099.57

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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.