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Finding the Fourth Proportional to 199,412.67, 275,192.76 and 108,768.63

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Solution

The fourth proportional to 199,412.67, 275,192.76 and 108,768.63 is: 150,102.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,412.67 : 275,192.76 = 108,768.63 : x
  2. Step 2: Convert to fraction form
    199,412.67/275,192.76 = 108,768.63/x
  3. Step 3: Cross multiply
    199,412.67x = 275,192.76 × 108,768.63
  4. Step 4: Simplify right side
    199,412.67x = 29,932,339,491.12
  5. Step 5: Solve for x
    x = 29,932,339,491.12/199,412.67
  6. Step 6: Final answer
    x = 150,102.50

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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.