Home / 396,799.66-547,587.48-215,515.15

Finding the Fourth Proportional to 396,799.66, 547,587.48 and 215,515.15

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Solution

The fourth proportional to 396,799.66, 547,587.48 and 215,515.15 is: 297,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,799.66 : 547,587.48 = 215,515.15 : x
  2. Step 2: Convert to fraction form
    396,799.66/547,587.48 = 215,515.15/x
  3. Step 3: Cross multiply
    396,799.66x = 547,587.48 × 215,515.15
  4. Step 4: Simplify right side
    396,799.66x = 118,013,397,890.32
  5. Step 5: Solve for x
    x = 118,013,397,890.32/396,799.66
  6. Step 6: Final answer
    x = 297,413.05

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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.