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Finding the Fourth Proportional to 300,201.80, 450,303.30 and 122,708.72

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Solution

The fourth proportional to 300,201.80, 450,303.30 and 122,708.72 is: 184,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,201.80 : 450,303.30 = 122,708.72 : x
  2. Step 2: Convert to fraction form
    300,201.80/450,303.30 = 122,708.72/x
  3. Step 3: Cross multiply
    300,201.80x = 450,303.30 × 122,708.72
  4. Step 4: Simplify right side
    300,201.80x = 55,256,142,680.53
  5. Step 5: Solve for x
    x = 55,256,142,680.53/300,201.80
  6. Step 6: Final answer
    x = 184,063.33

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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.