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Finding the Fourth Proportional to 636,600.98, 954,698.93 and 210,057.30

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Solution

The fourth proportional to 636,600.98, 954,698.93 and 210,057.30 is: 315,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,600.98 : 954,698.93 = 210,057.30 : x
  2. Step 2: Convert to fraction form
    636,600.98/954,698.93 = 210,057.30/x
  3. Step 3: Cross multiply
    636,600.98x = 954,698.93 × 210,057.30
  4. Step 4: Simplify right side
    636,600.98x = 200,541,481,523.09
  5. Step 5: Solve for x
    x = 200,541,481,523.09/636,600.98
  6. Step 6: Final answer
    x = 315,019.12

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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.