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Finding the Fourth Proportional to 275,200.20, 412,800.30 and 88,230.60

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Solution

The fourth proportional to 275,200.20, 412,800.30 and 88,230.60 is: 132,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,200.20 : 412,800.30 = 88,230.60 : x
  2. Step 2: Convert to fraction form
    275,200.20/412,800.30 = 88,230.60/x
  3. Step 3: Cross multiply
    275,200.20x = 412,800.30 × 88,230.60
  4. Step 4: Simplify right side
    275,200.20x = 36,421,618,149.18
  5. Step 5: Solve for x
    x = 36,421,618,149.18/275,200.20
  6. Step 6: Final answer
    x = 132,345.90

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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.