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Finding the Fourth Proportional to 538.63, 808.03 and 173.39

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Solution

The fourth proportional to 538.63, 808.03 and 173.39 is: 260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.63 : 808.03 = 173.39 : x
  2. Step 2: Convert to fraction form
    538.63/808.03 = 173.39/x
  3. Step 3: Cross multiply
    538.63x = 808.03 × 173.39
  4. Step 4: Simplify right side
    538.63x = 140,104.07
  5. Step 5: Solve for x
    x = 140,104.07/538.63
  6. Step 6: Final answer
    x = 260.11

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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.