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Finding the Fourth Proportional to 199,457.55, 275,245.95 and 108,813.49

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Solution

The fourth proportional to 199,457.55, 275,245.95 and 108,813.49 is: 150,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,457.55 : 275,245.95 = 108,813.49 : x
  2. Step 2: Convert to fraction form
    199,457.55/275,245.95 = 108,813.49/x
  3. Step 3: Cross multiply
    199,457.55x = 275,245.95 × 108,813.49
  4. Step 4: Simplify right side
    199,457.55x = 29,950,471,739.75
  5. Step 5: Solve for x
    x = 29,950,471,739.75/199,457.55
  6. Step 6: Final answer
    x = 150,159.63

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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.