Home / 258,964.80-388,452.96-71,975.04

Finding the Fourth Proportional to 258,964.80, 388,452.96 and 71,975.04

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Solution

The fourth proportional to 258,964.80, 388,452.96 and 71,975.04 is: 107,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,964.80 : 388,452.96 = 71,975.04 : x
  2. Step 2: Convert to fraction form
    258,964.80/388,452.96 = 71,975.04/x
  3. Step 3: Cross multiply
    258,964.80x = 388,452.96 × 71,975.04
  4. Step 4: Simplify right side
    258,964.80x = 27,958,917,334.12
  5. Step 5: Solve for x
    x = 27,958,917,334.12/258,964.80
  6. Step 6: Final answer
    x = 107,964.16

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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.