Home / 395,300.45-545,514.85-214,012.43

Finding the Fourth Proportional to 395,300.45, 545,514.85 and 214,012.43

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Solution

The fourth proportional to 395,300.45, 545,514.85 and 214,012.43 is: 295,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,300.45 : 545,514.85 = 214,012.43 : x
  2. Step 2: Convert to fraction form
    395,300.45/545,514.85 = 214,012.43/x
  3. Step 3: Cross multiply
    395,300.45x = 545,514.85 × 214,012.43
  4. Step 4: Simplify right side
    395,300.45x = 116,746,958,235.21
  5. Step 5: Solve for x
    x = 116,746,958,235.21/395,300.45
  6. Step 6: Final answer
    x = 295,337.27

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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.