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Finding the Fourth Proportional to 316.51, 475.23 and 195.28

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Solution

The fourth proportional to 316.51, 475.23 and 195.28 is: 293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.51 : 475.23 = 195.28 : x
  2. Step 2: Convert to fraction form
    316.51/475.23 = 195.28/x
  3. Step 3: Cross multiply
    316.51x = 475.23 × 195.28
  4. Step 4: Simplify right side
    316.51x = 92,802.91
  5. Step 5: Solve for x
    x = 92,802.91/316.51
  6. Step 6: Final answer
    x = 293.21

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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.