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Finding the Fourth Proportional to 301.16, 415.84 and 196.32

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Solution

The fourth proportional to 301.16, 415.84 and 196.32 is: 271.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.16 : 415.84 = 196.32 : x
  2. Step 2: Convert to fraction form
    301.16/415.84 = 196.32/x
  3. Step 3: Cross multiply
    301.16x = 415.84 × 196.32
  4. Step 4: Simplify right side
    301.16x = 81,637.71
  5. Step 5: Solve for x
    x = 81,637.71/301.16
  6. Step 6: Final answer
    x = 271.08

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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.