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Finding the Fourth Proportional to 199,988.25, 275,984.28 and 109,350.07

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Solution

The fourth proportional to 199,988.25, 275,984.28 and 109,350.07 is: 150,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,988.25 : 275,984.28 = 109,350.07 : x
  2. Step 2: Convert to fraction form
    199,988.25/275,984.28 = 109,350.07/x
  3. Step 3: Cross multiply
    199,988.25x = 275,984.28 × 109,350.07
  4. Step 4: Simplify right side
    199,988.25x = 30,178,900,336.90
  5. Step 5: Solve for x
    x = 30,178,900,336.90/199,988.25
  6. Step 6: Final answer
    x = 150,903.37

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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.