Home / 395,231.45-545,419.73-213,942.82

Finding the Fourth Proportional to 395,231.45, 545,419.73 and 213,942.82

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Solution

The fourth proportional to 395,231.45, 545,419.73 and 213,942.82 is: 295,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,231.45 : 545,419.73 = 213,942.82 : x
  2. Step 2: Convert to fraction form
    395,231.45/545,419.73 = 213,942.82/x
  3. Step 3: Cross multiply
    395,231.45x = 545,419.73 × 213,942.82
  4. Step 4: Simplify right side
    395,231.45x = 116,688,634,110.38
  5. Step 5: Solve for x
    x = 116,688,634,110.38/395,231.45
  6. Step 6: Final answer
    x = 295,241.27

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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.