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Finding the Fourth Proportional to 539.26, 744.42 and 352.76

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Solution

The fourth proportional to 539.26, 744.42 and 352.76 is: 486.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.26 : 744.42 = 352.76 : x
  2. Step 2: Convert to fraction form
    539.26/744.42 = 352.76/x
  3. Step 3: Cross multiply
    539.26x = 744.42 × 352.76
  4. Step 4: Simplify right side
    539.26x = 262,599.20
  5. Step 5: Solve for x
    x = 262,599.20/539.26
  6. Step 6: Final answer
    x = 486.96

Related Problems

Find fourth proportional to 269.63, 372.21 and 176.38
Half scale
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Double scale
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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.