Home / 395,623.52-545,982.32-225,912.16

Finding the Fourth Proportional to 395,623.52, 545,982.32 and 225,912.16

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Solution

The fourth proportional to 395,623.52, 545,982.32 and 225,912.16 is: 311,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,623.52 : 545,982.32 = 225,912.16 : x
  2. Step 2: Convert to fraction form
    395,623.52/545,982.32 = 225,912.16/x
  3. Step 3: Cross multiply
    395,623.52x = 545,982.32 × 225,912.16
  4. Step 4: Simplify right side
    395,623.52x = 123,344,045,233.01
  5. Step 5: Solve for x
    x = 123,344,045,233.01/395,623.52
  6. Step 6: Final answer
    x = 311,771.26

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1.5x scale

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.