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Finding the Fourth Proportional to 436.26, 654.35 and 273.45

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Solution

The fourth proportional to 436.26, 654.35 and 273.45 is: 410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.26 : 654.35 = 273.45 : x
  2. Step 2: Convert to fraction form
    436.26/654.35 = 273.45/x
  3. Step 3: Cross multiply
    436.26x = 654.35 × 273.45
  4. Step 4: Simplify right side
    436.26x = 178,930.64
  5. Step 5: Solve for x
    x = 178,930.64/436.26
  6. Step 6: Final answer
    x = 410.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.