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Finding the Fourth Proportional to 199,955.61, 275,945.40 and 109,309.59

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Solution

The fourth proportional to 199,955.61, 275,945.40 and 109,309.59 is: 150,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,955.61 : 275,945.40 = 109,309.59 : x
  2. Step 2: Convert to fraction form
    199,955.61/275,945.40 = 109,309.59/x
  3. Step 3: Cross multiply
    199,955.61x = 275,945.40 × 109,309.59
  4. Step 4: Simplify right side
    199,955.61x = 30,163,478,536.39
  5. Step 5: Solve for x
    x = 30,163,478,536.39/199,955.61
  6. Step 6: Final answer
    x = 150,850.87

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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.