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Finding the Fourth Proportional to 341,997.80, 512,996.70 and 263,265.80

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Solution

The fourth proportional to 341,997.80, 512,996.70 and 263,265.80 is: 394,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,997.80 : 512,996.70 = 263,265.80 : x
  2. Step 2: Convert to fraction form
    341,997.80/512,996.70 = 263,265.80/x
  3. Step 3: Cross multiply
    341,997.80x = 512,996.70 × 263,265.80
  4. Step 4: Simplify right side
    341,997.80x = 135,054,486,622.86
  5. Step 5: Solve for x
    x = 135,054,486,622.86/341,997.80
  6. Step 6: Final answer
    x = 394,898.70

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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.