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Finding the Fourth Proportional to 274,994.40, 412,491.60 and 205,010.40

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Solution

The fourth proportional to 274,994.40, 412,491.60 and 205,010.40 is: 307,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,994.40 : 412,491.60 = 205,010.40 : x
  2. Step 2: Convert to fraction form
    274,994.40/412,491.60 = 205,010.40/x
  3. Step 3: Cross multiply
    274,994.40x = 412,491.60 × 205,010.40
  4. Step 4: Simplify right side
    274,994.40x = 84,565,067,912.64
  5. Step 5: Solve for x
    x = 84,565,067,912.64/274,994.40
  6. Step 6: Final answer
    x = 307,515.60

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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.