Home / 215,845.40-323,768.10-193,100.60

Finding the Fourth Proportional to 215,845.40, 323,768.10 and 193,100.60

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Solution

The fourth proportional to 215,845.40, 323,768.10 and 193,100.60 is: 289,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,845.40 : 323,768.10 = 193,100.60 : x
  2. Step 2: Convert to fraction form
    215,845.40/323,768.10 = 193,100.60/x
  3. Step 3: Cross multiply
    215,845.40x = 323,768.10 × 193,100.60
  4. Step 4: Simplify right side
    215,845.40x = 62,519,814,370.86
  5. Step 5: Solve for x
    x = 62,519,814,370.86/215,845.40
  6. Step 6: Final answer
    x = 289,650.90

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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.