Home / 395,705.20-546,262.36-225,906.56

Finding the Fourth Proportional to 395,705.20, 546,262.36 and 225,906.56

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Solution

The fourth proportional to 395,705.20, 546,262.36 and 225,906.56 is: 311,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,705.20 : 546,262.36 = 225,906.56 : x
  2. Step 2: Convert to fraction form
    395,705.20/546,262.36 = 225,906.56/x
  3. Step 3: Cross multiply
    395,705.20x = 546,262.36 × 225,906.56
  4. Step 4: Simplify right side
    395,705.20x = 123,404,250,605.08
  5. Step 5: Solve for x
    x = 123,404,250,605.08/395,705.20
  6. Step 6: Final answer
    x = 311,859.06

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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.