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Finding the Fourth Proportional to 395,354.22, 545,589.88 and 214,068.38

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Solution

The fourth proportional to 395,354.22, 545,589.88 and 214,068.38 is: 295,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,354.22 : 545,589.88 = 214,068.38 : x
  2. Step 2: Convert to fraction form
    395,354.22/545,589.88 = 214,068.38/x
  3. Step 3: Cross multiply
    395,354.22x = 545,589.88 × 214,068.38
  4. Step 4: Simplify right side
    395,354.22x = 116,793,541,755.99
  5. Step 5: Solve for x
    x = 116,793,541,755.99/395,354.22
  6. Step 6: Final answer
    x = 295,414.94

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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.