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Finding the Fourth Proportional to 469.71, 648.19 and 273.23

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Solution

The fourth proportional to 469.71, 648.19 and 273.23 is: 377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.71 : 648.19 = 273.23 : x
  2. Step 2: Convert to fraction form
    469.71/648.19 = 273.23/x
  3. Step 3: Cross multiply
    469.71x = 648.19 × 273.23
  4. Step 4: Simplify right side
    469.71x = 177,104.95
  5. Step 5: Solve for x
    x = 177,104.95/469.71
  6. Step 6: Final answer
    x = 377.06

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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.