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Finding the Fourth Proportional to 538.03, 804.81 and 505.22

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Solution

The fourth proportional to 538.03, 804.81 and 505.22 is: 755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.03 : 804.81 = 505.22 : x
  2. Step 2: Convert to fraction form
    538.03/804.81 = 505.22/x
  3. Step 3: Cross multiply
    538.03x = 804.81 × 505.22
  4. Step 4: Simplify right side
    538.03x = 406,610.48
  5. Step 5: Solve for x
    x = 406,610.48/538.03
  6. Step 6: Final answer
    x = 755.74

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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.