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Finding the Fourth Proportional to 316.93, 474.67 and 273.25

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Solution

The fourth proportional to 316.93, 474.67 and 273.25 is: 409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.93 : 474.67 = 273.25 : x
  2. Step 2: Convert to fraction form
    316.93/474.67 = 273.25/x
  3. Step 3: Cross multiply
    316.93x = 474.67 × 273.25
  4. Step 4: Simplify right side
    316.93x = 129,703.58
  5. Step 5: Solve for x
    x = 129,703.58/316.93
  6. Step 6: Final answer
    x = 409.25

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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.