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Finding the Fourth Proportional to 202,289.70, 303,519.60 and 108,686.10

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Solution

The fourth proportional to 202,289.70, 303,519.60 and 108,686.10 is: 163,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,289.70 : 303,519.60 = 108,686.10 : x
  2. Step 2: Convert to fraction form
    202,289.70/303,519.60 = 108,686.10/x
  3. Step 3: Cross multiply
    202,289.70x = 303,519.60 × 108,686.10
  4. Step 4: Simplify right side
    202,289.70x = 32,988,361,597.56
  5. Step 5: Solve for x
    x = 32,988,361,597.56/202,289.70
  6. Step 6: Final answer
    x = 163,074.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.