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Finding the Fourth Proportional to 318,906.16, 440,109.44 and 182,939.20

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Solution

The fourth proportional to 318,906.16, 440,109.44 and 182,939.20 is: 252,466.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,906.16 : 440,109.44 = 182,939.20 : x
  2. Step 2: Convert to fraction form
    318,906.16/440,109.44 = 182,939.20/x
  3. Step 3: Cross multiply
    318,906.16x = 440,109.44 × 182,939.20
  4. Step 4: Simplify right side
    318,906.16x = 80,513,268,866.05
  5. Step 5: Solve for x
    x = 80,513,268,866.05/318,906.16
  6. Step 6: Final answer
    x = 252,466.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.