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Finding the Fourth Proportional to 636,567.56, 954,969.41 and 210,133.09

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Solution

The fourth proportional to 636,567.56, 954,969.41 and 210,133.09 is: 315,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,567.56 : 954,969.41 = 210,133.09 : x
  2. Step 2: Convert to fraction form
    636,567.56/954,969.41 = 210,133.09/x
  3. Step 3: Cross multiply
    636,567.56x = 954,969.41 × 210,133.09
  4. Step 4: Simplify right side
    636,567.56x = 200,670,672,978.78
  5. Step 5: Solve for x
    x = 200,670,672,978.78/636,567.56
  6. Step 6: Final answer
    x = 315,238.61

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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.