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Finding the Third Proportional to 554.44 and 858.94

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Solution

The third proportional to 554.44 and 858.94 is: 1,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.44 : 858.94 = 858.94 : x
  2. Step 2: Convert to fraction form
    554.44/858.94 = 858.94/x
  3. Step 3: Cross multiply
    554.44x = 858.94 × 858.94
  4. Step 4: Simplify right side
    554.44x = 737,773.63
  5. Step 5: Solve for x
    x = 737,773.63/554.44
  6. Step 6: Final answer
    x = 1,330.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.