Home / 396,548.60-547,237.77-215,260.66

Finding the Fourth Proportional to 396,548.60, 547,237.77 and 215,260.66

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Solution

The fourth proportional to 396,548.60, 547,237.77 and 215,260.66 is: 297,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,548.60 : 547,237.77 = 215,260.66 : x
  2. Step 2: Convert to fraction form
    396,548.60/547,237.77 = 215,260.66/x
  3. Step 3: Cross multiply
    396,548.60x = 547,237.77 × 215,260.66
  4. Step 4: Simplify right side
    396,548.60x = 117,798,763,547.13
  5. Step 5: Solve for x
    x = 117,798,763,547.13/396,548.60
  6. Step 6: Final answer
    x = 297,060.09

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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.