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Finding the Fourth Proportional to 415.14, 622.54 and 304.77

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Solution

The fourth proportional to 415.14, 622.54 and 304.77 is: 457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.14 : 622.54 = 304.77 : x
  2. Step 2: Convert to fraction form
    415.14/622.54 = 304.77/x
  3. Step 3: Cross multiply
    415.14x = 622.54 × 304.77
  4. Step 4: Simplify right side
    415.14x = 189,729.56
  5. Step 5: Solve for x
    x = 189,729.56/415.14
  6. Step 6: Final answer
    x = 457.03

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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.