Home / 395,360.03-545,575.23-231,994.54

Finding the Fourth Proportional to 395,360.03, 545,575.23 and 231,994.54

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Solution

The fourth proportional to 395,360.03, 545,575.23 and 231,994.54 is: 320,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,360.03 : 545,575.23 = 231,994.54 : x
  2. Step 2: Convert to fraction form
    395,360.03/545,575.23 = 231,994.54/x
  3. Step 3: Cross multiply
    395,360.03x = 545,575.23 × 231,994.54
  4. Step 4: Simplify right side
    395,360.03x = 126,570,475,201.21
  5. Step 5: Solve for x
    x = 126,570,475,201.21/395,360.03
  6. Step 6: Final answer
    x = 320,139.78

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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.