Home / 259,639.42-389,500.14-109,880.49

Finding the Fourth Proportional to 259,639.42, 389,500.14 and 109,880.49

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Solution

The fourth proportional to 259,639.42, 389,500.14 and 109,880.49 is: 164,838.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,639.42 : 389,500.14 = 109,880.49 : x
  2. Step 2: Convert to fraction form
    259,639.42/389,500.14 = 109,880.49/x
  3. Step 3: Cross multiply
    259,639.42x = 389,500.14 × 109,880.49
  4. Step 4: Simplify right side
    259,639.42x = 42,798,467,286.84
  5. Step 5: Solve for x
    x = 42,798,467,286.84/259,639.42
  6. Step 6: Final answer
    x = 164,838.09

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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.