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Finding the Fourth Proportional to 203,901.40, 305,852.10 and 147,622.60

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Solution

The fourth proportional to 203,901.40, 305,852.10 and 147,622.60 is: 221,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,901.40 : 305,852.10 = 147,622.60 : x
  2. Step 2: Convert to fraction form
    203,901.40/305,852.10 = 147,622.60/x
  3. Step 3: Cross multiply
    203,901.40x = 305,852.10 × 147,622.60
  4. Step 4: Simplify right side
    203,901.40x = 45,150,682,217.46
  5. Step 5: Solve for x
    x = 45,150,682,217.46/203,901.40
  6. Step 6: Final answer
    x = 221,433.90

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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.