Home / 311,975.64-430,527.60-168,736.68

Finding the Fourth Proportional to 311,975.64, 430,527.60 and 168,736.68

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Solution

The fourth proportional to 311,975.64, 430,527.60 and 168,736.68 is: 232,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,975.64 : 430,527.60 = 168,736.68 : x
  2. Step 2: Convert to fraction form
    311,975.64/430,527.60 = 168,736.68/x
  3. Step 3: Cross multiply
    311,975.64x = 430,527.60 × 168,736.68
  4. Step 4: Simplify right side
    311,975.64x = 72,645,797,872.37
  5. Step 5: Solve for x
    x = 72,645,797,872.37/311,975.64
  6. Step 6: Final answer
    x = 232,857.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.