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Finding the Fourth Proportional to 318,129.12, 477,197 and 93,493.56

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Solution

The fourth proportional to 318,129.12, 477,197 and 93,493.56 is: 140,241.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,129.12 : 477,197 = 93,493.56 : x
  2. Step 2: Convert to fraction form
    318,129.12/477,197 = 93,493.56/x
  3. Step 3: Cross multiply
    318,129.12x = 477,197 × 93,493.56
  4. Step 4: Simplify right side
    318,129.12x = 44,614,846,351.32
  5. Step 5: Solve for x
    x = 44,614,846,351.32/318,129.12
  6. Step 6: Final answer
    x = 140,241.32

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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.