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Finding the Fourth Proportional to 199,630.88, 275,478.84 and 108,968.84

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Solution

The fourth proportional to 199,630.88, 275,478.84 and 108,968.84 is: 150,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,630.88 : 275,478.84 = 108,968.84 : x
  2. Step 2: Convert to fraction form
    199,630.88/275,478.84 = 108,968.84/x
  3. Step 3: Cross multiply
    199,630.88x = 275,478.84 × 108,968.84
  4. Step 4: Simplify right side
    199,630.88x = 30,018,609,639.35
  5. Step 5: Solve for x
    x = 30,018,609,639.35/199,630.88
  6. Step 6: Final answer
    x = 150,370.57

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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.