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Finding the Fourth Proportional to 228,998.80, 343,498.20 and 203,629.60

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Solution

The fourth proportional to 228,998.80, 343,498.20 and 203,629.60 is: 305,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,998.80 : 343,498.20 = 203,629.60 : x
  2. Step 2: Convert to fraction form
    228,998.80/343,498.20 = 203,629.60/x
  3. Step 3: Cross multiply
    228,998.80x = 343,498.20 × 203,629.60
  4. Step 4: Simplify right side
    228,998.80x = 69,946,401,066.72
  5. Step 5: Solve for x
    x = 69,946,401,066.72/228,998.80
  6. Step 6: Final answer
    x = 305,444.40

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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.