Home / 231,619.96-347,489.84-135,638.22

Finding the Fourth Proportional to 231,619.96, 347,489.84 and 135,638.22

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Solution

The fourth proportional to 231,619.96, 347,489.84 and 135,638.22 is: 203,492.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,619.96 : 347,489.84 = 135,638.22 : x
  2. Step 2: Convert to fraction form
    231,619.96/347,489.84 = 135,638.22/x
  3. Step 3: Cross multiply
    231,619.96x = 347,489.84 × 135,638.22
  4. Step 4: Simplify right side
    231,619.96x = 47,132,904,605.49
  5. Step 5: Solve for x
    x = 47,132,904,605.49/231,619.96
  6. Step 6: Final answer
    x = 203,492.41

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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.