Home / 396,835.18-547,636.67-215,550.64

Finding the Fourth Proportional to 396,835.18, 547,636.67 and 215,550.64

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Solution

The fourth proportional to 396,835.18, 547,636.67 and 215,550.64 is: 297,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,835.18 : 547,636.67 = 215,550.64 : x
  2. Step 2: Convert to fraction form
    396,835.18/547,636.67 = 215,550.64/x
  3. Step 3: Cross multiply
    396,835.18x = 547,636.67 × 215,550.64
  4. Step 4: Simplify right side
    396,835.18x = 118,043,433,875.75
  5. Step 5: Solve for x
    x = 118,043,433,875.75/396,835.18
  6. Step 6: Final answer
    x = 297,462.12

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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.