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Finding the Fourth Proportional to 396,104.58, 546,620.60 and 214,820.51

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Solution

The fourth proportional to 396,104.58, 546,620.60 and 214,820.51 is: 296,450.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,104.58 : 546,620.60 = 214,820.51 : x
  2. Step 2: Convert to fraction form
    396,104.58/546,620.60 = 214,820.51/x
  3. Step 3: Cross multiply
    396,104.58x = 546,620.60 × 214,820.51
  4. Step 4: Simplify right side
    396,104.58x = 117,425,313,872.45
  5. Step 5: Solve for x
    x = 117,425,313,872.45/396,104.58
  6. Step 6: Final answer
    x = 296,450.28

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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.