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Finding the Fourth Proportional to 301.10, 415.48 and 190.58

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Solution

The fourth proportional to 301.10, 415.48 and 190.58 is: 262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.10 : 415.48 = 190.58 : x
  2. Step 2: Convert to fraction form
    301.10/415.48 = 190.58/x
  3. Step 3: Cross multiply
    301.10x = 415.48 × 190.58
  4. Step 4: Simplify right side
    301.10x = 79,182.18
  5. Step 5: Solve for x
    x = 79,182.18/301.10
  6. Step 6: Final answer
    x = 262.98

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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.