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Finding the Fourth Proportional to 295,768.72, 443,565.60 and 85,408.48

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Solution

The fourth proportional to 295,768.72, 443,565.60 and 85,408.48 is: 128,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,768.72 : 443,565.60 = 85,408.48 : x
  2. Step 2: Convert to fraction form
    295,768.72/443,565.60 = 85,408.48/x
  3. Step 3: Cross multiply
    295,768.72x = 443,565.60 × 85,408.48
  4. Step 4: Simplify right side
    295,768.72x = 37,884,263,676.29
  5. Step 5: Solve for x
    x = 37,884,263,676.29/295,768.72
  6. Step 6: Final answer
    x = 128,087.46

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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.