Home / 396,414.07-547,051.77-215,126.01

Finding the Fourth Proportional to 396,414.07, 547,051.77 and 215,126.01

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Solution

The fourth proportional to 396,414.07, 547,051.77 and 215,126.01 is: 296,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,414.07 : 547,051.77 = 215,126.01 : x
  2. Step 2: Convert to fraction form
    396,414.07/547,051.77 = 215,126.01/x
  3. Step 3: Cross multiply
    396,414.07x = 547,051.77 × 215,126.01
  4. Step 4: Simplify right side
    396,414.07x = 117,685,064,543.54
  5. Step 5: Solve for x
    x = 117,685,064,543.54/396,414.07
  6. Step 6: Final answer
    x = 296,874.09

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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.