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Finding the Fourth Proportional to 298,505.08, 447,757.70 and 98,771.80

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Solution

The fourth proportional to 298,505.08, 447,757.70 and 98,771.80 is: 148,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,505.08 : 447,757.70 = 98,771.80 : x
  2. Step 2: Convert to fraction form
    298,505.08/447,757.70 = 98,771.80/x
  3. Step 3: Cross multiply
    298,505.08x = 447,757.70 × 98,771.80
  4. Step 4: Simplify right side
    298,505.08x = 44,225,833,992.86
  5. Step 5: Solve for x
    x = 44,225,833,992.86/298,505.08
  6. Step 6: Final answer
    x = 148,157.73

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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.