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Finding the Fourth Proportional to 340,474.40, 509,399.40 and 222,376.40

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Solution

The fourth proportional to 340,474.40, 509,399.40 and 222,376.40 is: 332,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,474.40 : 509,399.40 = 222,376.40 : x
  2. Step 2: Convert to fraction form
    340,474.40/509,399.40 = 222,376.40/x
  3. Step 3: Cross multiply
    340,474.40x = 509,399.40 × 222,376.40
  4. Step 4: Simplify right side
    340,474.40x = 113,278,404,734.16
  5. Step 5: Solve for x
    x = 113,278,404,734.16/340,474.40
  6. Step 6: Final answer
    x = 332,707.55

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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.