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Finding the Fourth Proportional to 210,246.60, 315,794.36 and 126,166.44

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Solution

The fourth proportional to 210,246.60, 315,794.36 and 126,166.44 is: 189,504.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,246.60 : 315,794.36 = 126,166.44 : x
  2. Step 2: Convert to fraction form
    210,246.60/315,794.36 = 126,166.44/x
  3. Step 3: Cross multiply
    210,246.60x = 315,794.36 × 126,166.44
  4. Step 4: Simplify right side
    210,246.60x = 39,842,650,173.28
  5. Step 5: Solve for x
    x = 39,842,650,173.28/210,246.60
  6. Step 6: Final answer
    x = 189,504.37

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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.