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Finding the Fourth Proportional to 333.01, 499.72 and 127.60

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Solution

The fourth proportional to 333.01, 499.72 and 127.60 is: 191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.01 : 499.72 = 127.60 : x
  2. Step 2: Convert to fraction form
    333.01/499.72 = 127.60/x
  3. Step 3: Cross multiply
    333.01x = 499.72 × 127.60
  4. Step 4: Simplify right side
    333.01x = 63,764.27
  5. Step 5: Solve for x
    x = 63,764.27/333.01
  6. Step 6: Final answer
    x = 191.48

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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.