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Finding the Fourth Proportional to 313.08, 467.22 and 282.36

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Solution

The fourth proportional to 313.08, 467.22 and 282.36 is: 421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.08 : 467.22 = 282.36 : x
  2. Step 2: Convert to fraction form
    313.08/467.22 = 282.36/x
  3. Step 3: Cross multiply
    313.08x = 467.22 × 282.36
  4. Step 4: Simplify right side
    313.08x = 131,924.24
  5. Step 5: Solve for x
    x = 131,924.24/313.08
  6. Step 6: Final answer
    x = 421.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.