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Finding the Fourth Proportional to 538.85, 743.28 and 373.11

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Solution

The fourth proportional to 538.85, 743.28 and 373.11 is: 514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.85 : 743.28 = 373.11 : x
  2. Step 2: Convert to fraction form
    538.85/743.28 = 373.11/x
  3. Step 3: Cross multiply
    538.85x = 743.28 × 373.11
  4. Step 4: Simplify right side
    538.85x = 277,321.01
  5. Step 5: Solve for x
    x = 277,321.01/538.85
  6. Step 6: Final answer
    x = 514.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.