Home / 395,299.06-545,512.39-214,012.55

Finding the Fourth Proportional to 395,299.06, 545,512.39 and 214,012.55

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Solution

The fourth proportional to 395,299.06, 545,512.39 and 214,012.55 is: 295,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,299.06 : 545,512.39 = 214,012.55 : x
  2. Step 2: Convert to fraction form
    395,299.06/545,512.39 = 214,012.55/x
  3. Step 3: Cross multiply
    395,299.06x = 545,512.39 × 214,012.55
  4. Step 4: Simplify right side
    395,299.06x = 116,746,498,469.24
  5. Step 5: Solve for x
    x = 116,746,498,469.24/395,299.06
  6. Step 6: Final answer
    x = 295,337.15

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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.