Home / 212,680.32-318,536.88-164,912.64

Finding the Fourth Proportional to 212,680.32, 318,536.88 and 164,912.64

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Solution

The fourth proportional to 212,680.32, 318,536.88 and 164,912.64 is: 246,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,680.32 : 318,536.88 = 164,912.64 : x
  2. Step 2: Convert to fraction form
    212,680.32/318,536.88 = 164,912.64/x
  3. Step 3: Cross multiply
    212,680.32x = 318,536.88 × 164,912.64
  4. Step 4: Simplify right side
    212,680.32x = 52,530,757,818.16
  5. Step 5: Solve for x
    x = 52,530,757,818.16/212,680.32
  6. Step 6: Final answer
    x = 246,993.98

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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.