Home / 198,000.20-297,000.30-186,336.20

Finding the Fourth Proportional to 198,000.20, 297,000.30 and 186,336.20

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Solution

The fourth proportional to 198,000.20, 297,000.30 and 186,336.20 is: 279,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,000.20 : 297,000.30 = 186,336.20 : x
  2. Step 2: Convert to fraction form
    198,000.20/297,000.30 = 186,336.20/x
  3. Step 3: Cross multiply
    198,000.20x = 297,000.30 × 186,336.20
  4. Step 4: Simplify right side
    198,000.20x = 55,341,907,300.86
  5. Step 5: Solve for x
    x = 55,341,907,300.86/198,000.20
  6. Step 6: Final answer
    x = 279,504.30

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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.