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Finding the Fourth Proportional to 370,771.44, 511,296.12 and 279,110.22

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Solution

The fourth proportional to 370,771.44, 511,296.12 and 279,110.22 is: 384,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,771.44 : 511,296.12 = 279,110.22 : x
  2. Step 2: Convert to fraction form
    370,771.44/511,296.12 = 279,110.22/x
  3. Step 3: Cross multiply
    370,771.44x = 511,296.12 × 279,110.22
  4. Step 4: Simplify right side
    370,771.44x = 142,707,972,538.35
  5. Step 5: Solve for x
    x = 142,707,972,538.35/370,771.44
  6. Step 6: Final answer
    x = 384,894.73

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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.