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Finding the Fourth Proportional to 178,234.80, 267,352.20 and 111,879.60

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Solution

The fourth proportional to 178,234.80, 267,352.20 and 111,879.60 is: 167,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,234.80 : 267,352.20 = 111,879.60 : x
  2. Step 2: Convert to fraction form
    178,234.80/267,352.20 = 111,879.60/x
  3. Step 3: Cross multiply
    178,234.80x = 267,352.20 × 111,879.60
  4. Step 4: Simplify right side
    178,234.80x = 29,911,257,195.12
  5. Step 5: Solve for x
    x = 29,911,257,195.12/178,234.80
  6. Step 6: Final answer
    x = 167,819.40

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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.