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Finding the Fourth Proportional to 199,988.76, 275,984.98 and 109,350.56

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Solution

The fourth proportional to 199,988.76, 275,984.98 and 109,350.56 is: 150,904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,988.76 : 275,984.98 = 109,350.56 : x
  2. Step 2: Convert to fraction form
    199,988.76/275,984.98 = 109,350.56/x
  3. Step 3: Cross multiply
    199,988.76x = 275,984.98 × 109,350.56
  4. Step 4: Simplify right side
    199,988.76x = 30,179,112,114.59
  5. Step 5: Solve for x
    x = 30,179,112,114.59/199,988.76
  6. Step 6: Final answer
    x = 150,904.04

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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.