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Finding the Fourth Proportional to 311,520.94, 430,042.41 and 182,441.45

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Solution

The fourth proportional to 311,520.94, 430,042.41 and 182,441.45 is: 251,853.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,520.94 : 430,042.41 = 182,441.45 : x
  2. Step 2: Convert to fraction form
    311,520.94/430,042.41 = 182,441.45/x
  3. Step 3: Cross multiply
    311,520.94x = 430,042.41 × 182,441.45
  4. Step 4: Simplify right side
    311,520.94x = 78,457,561,917.00
  5. Step 5: Solve for x
    x = 78,457,561,917.00/311,520.94
  6. Step 6: Final answer
    x = 251,853.25

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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.