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Finding the Fourth Proportional to 415.03, 622.65 and 293.53

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Solution

The fourth proportional to 415.03, 622.65 and 293.53 is: 440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.03 : 622.65 = 293.53 : x
  2. Step 2: Convert to fraction form
    415.03/622.65 = 293.53/x
  3. Step 3: Cross multiply
    415.03x = 622.65 × 293.53
  4. Step 4: Simplify right side
    415.03x = 182,766.45
  5. Step 5: Solve for x
    x = 182,766.45/415.03
  6. Step 6: Final answer
    x = 440.37

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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.