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Finding the Fourth Proportional to 373,885.88, 515,942.96 and 204,087.20

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Solution

The fourth proportional to 373,885.88, 515,942.96 and 204,087.20 is: 281,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,885.88 : 515,942.96 = 204,087.20 : x
  2. Step 2: Convert to fraction form
    373,885.88/515,942.96 = 204,087.20/x
  3. Step 3: Cross multiply
    373,885.88x = 515,942.96 × 204,087.20
  4. Step 4: Simplify right side
    373,885.88x = 105,297,354,066.11
  5. Step 5: Solve for x
    x = 105,297,354,066.11/373,885.88
  6. Step 6: Final answer
    x = 281,629.66

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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.