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Finding the Fourth Proportional to 201,222.80, 301,834.20 and 148,078.70

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Solution

The fourth proportional to 201,222.80, 301,834.20 and 148,078.70 is: 222,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,222.80 : 301,834.20 = 148,078.70 : x
  2. Step 2: Convert to fraction form
    201,222.80/301,834.20 = 148,078.70/x
  3. Step 3: Cross multiply
    201,222.80x = 301,834.20 × 148,078.70
  4. Step 4: Simplify right side
    201,222.80x = 44,695,215,951.54
  5. Step 5: Solve for x
    x = 44,695,215,951.54/201,222.80
  6. Step 6: Final answer
    x = 222,118.05

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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.