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Finding the Fourth Proportional to 199,499.85, 275,309.81 and 127,880.01

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Solution

The fourth proportional to 199,499.85, 275,309.81 and 127,880.01 is: 176,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,499.85 : 275,309.81 = 127,880.01 : x
  2. Step 2: Convert to fraction form
    199,499.85/275,309.81 = 127,880.01/x
  3. Step 3: Cross multiply
    199,499.85x = 275,309.81 × 127,880.01
  4. Step 4: Simplify right side
    199,499.85x = 35,206,620,616.50
  5. Step 5: Solve for x
    x = 35,206,620,616.50/199,499.85
  6. Step 6: Final answer
    x = 176,474.42

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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.