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Finding the Fourth Proportional to 231,604.64, 347,025.36 and 212,236.64

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Solution

The fourth proportional to 231,604.64, 347,025.36 and 212,236.64 is: 318,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,604.64 : 347,025.36 = 212,236.64 : x
  2. Step 2: Convert to fraction form
    231,604.64/347,025.36 = 212,236.64/x
  3. Step 3: Cross multiply
    231,604.64x = 347,025.36 × 212,236.64
  4. Step 4: Simplify right side
    231,604.64x = 73,651,496,401.19
  5. Step 5: Solve for x
    x = 73,651,496,401.19/231,604.64
  6. Step 6: Final answer
    x = 318,005.27

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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.