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Finding the Fourth Proportional to 539.10, 744.23 and 365.36

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Solution

The fourth proportional to 539.10, 744.23 and 365.36 is: 504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.10 : 744.23 = 365.36 : x
  2. Step 2: Convert to fraction form
    539.10/744.23 = 365.36/x
  3. Step 3: Cross multiply
    539.10x = 744.23 × 365.36
  4. Step 4: Simplify right side
    539.10x = 271,910.01
  5. Step 5: Solve for x
    x = 271,910.01/539.10
  6. Step 6: Final answer
    x = 504.38

Related Problems

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Double scale
Find fourth proportional to 540.10, 745.61 and 366.36
Similar ratio
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1.5x scale

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.