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Finding the Fourth Proportional to 318,083.45, 477,344.16 and 131,094.95

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Solution

The fourth proportional to 318,083.45, 477,344.16 and 131,094.95 is: 196,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,083.45 : 477,344.16 = 131,094.95 : x
  2. Step 2: Convert to fraction form
    318,083.45/477,344.16 = 131,094.95/x
  3. Step 3: Cross multiply
    318,083.45x = 477,344.16 × 131,094.95
  4. Step 4: Simplify right side
    318,083.45x = 62,577,406,401.27
  5. Step 5: Solve for x
    x = 62,577,406,401.27/318,083.45
  6. Step 6: Final answer
    x = 196,732.67

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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.