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Finding the Fourth Proportional to 293,998.80, 440,998.20 and 252,008.40

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Solution

The fourth proportional to 293,998.80, 440,998.20 and 252,008.40 is: 378,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,998.80 : 440,998.20 = 252,008.40 : x
  2. Step 2: Convert to fraction form
    293,998.80/440,998.20 = 252,008.40/x
  3. Step 3: Cross multiply
    293,998.80x = 440,998.20 × 252,008.40
  4. Step 4: Simplify right side
    293,998.80x = 111,135,250,784.88
  5. Step 5: Solve for x
    x = 111,135,250,784.88/293,998.80
  6. Step 6: Final answer
    x = 378,012.60

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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.