Home / 285,245.22-427,877.75-135,408.32

Finding the Fourth Proportional to 285,245.22, 427,877.75 and 135,408.32

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Solution

The fourth proportional to 285,245.22, 427,877.75 and 135,408.32 is: 203,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,245.22 : 427,877.75 = 135,408.32 : x
  2. Step 2: Convert to fraction form
    285,245.22/427,877.75 = 135,408.32/x
  3. Step 3: Cross multiply
    285,245.22x = 427,877.75 × 135,408.32
  4. Step 4: Simplify right side
    285,245.22x = 57,938,207,292.88
  5. Step 5: Solve for x
    x = 57,938,207,292.88/285,245.22
  6. Step 6: Final answer
    x = 203,117.19

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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.