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Finding the Fourth Proportional to 245,361.93, 338,604.93 and 149,921.25

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Solution

The fourth proportional to 245,361.93, 338,604.93 and 149,921.25 is: 206,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,361.93 : 338,604.93 = 149,921.25 : x
  2. Step 2: Convert to fraction form
    245,361.93/338,604.93 = 149,921.25/x
  3. Step 3: Cross multiply
    245,361.93x = 338,604.93 × 149,921.25
  4. Step 4: Simplify right side
    245,361.93x = 50,764,074,361.76
  5. Step 5: Solve for x
    x = 50,764,074,361.76/245,361.93
  6. Step 6: Final answer
    x = 206,894.67

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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.