Home / 258,880.14-388,250.73-109,121.58

Finding the Fourth Proportional to 258,880.14, 388,250.73 and 109,121.58

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Solution

The fourth proportional to 258,880.14, 388,250.73 and 109,121.58 is: 163,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,880.14 : 388,250.73 = 109,121.58 : x
  2. Step 2: Convert to fraction form
    258,880.14/388,250.73 = 109,121.58/x
  3. Step 3: Cross multiply
    258,880.14x = 388,250.73 × 109,121.58
  4. Step 4: Simplify right side
    258,880.14x = 42,366,533,093.75
  5. Step 5: Solve for x
    x = 42,366,533,093.75/258,880.14
  6. Step 6: Final answer
    x = 163,653.08

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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.