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Finding the Fourth Proportional to 423,571.44, 634,930.70 and 186,872.43

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Solution

The fourth proportional to 423,571.44, 634,930.70 and 186,872.43 is: 280,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,571.44 : 634,930.70 = 186,872.43 : x
  2. Step 2: Convert to fraction form
    423,571.44/634,930.70 = 186,872.43/x
  3. Step 3: Cross multiply
    423,571.44x = 634,930.70 × 186,872.43
  4. Step 4: Simplify right side
    423,571.44x = 118,651,045,288.39
  5. Step 5: Solve for x
    x = 118,651,045,288.39/423,571.44
  6. Step 6: Final answer
    x = 280,120.50

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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.