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Finding the Fourth Proportional to 298,515.60, 447,190.20 and 179,834.40

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Solution

The fourth proportional to 298,515.60, 447,190.20 and 179,834.40 is: 269,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,515.60 : 447,190.20 = 179,834.40 : x
  2. Step 2: Convert to fraction form
    298,515.60/447,190.20 = 179,834.40/x
  3. Step 3: Cross multiply
    298,515.60x = 447,190.20 × 179,834.40
  4. Step 4: Simplify right side
    298,515.60x = 80,420,181,302.88
  5. Step 5: Solve for x
    x = 80,420,181,302.88/298,515.60
  6. Step 6: Final answer
    x = 269,400.26

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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.