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Finding the Fourth Proportional to 540.39, 746.34 and 365.43

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Solution

The fourth proportional to 540.39, 746.34 and 365.43 is: 504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.39 : 746.34 = 365.43 : x
  2. Step 2: Convert to fraction form
    540.39/746.34 = 365.43/x
  3. Step 3: Cross multiply
    540.39x = 746.34 × 365.43
  4. Step 4: Simplify right side
    540.39x = 272,735.03
  5. Step 5: Solve for x
    x = 272,735.03/540.39
  6. Step 6: Final answer
    x = 504.70

Related Problems

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Half scale
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Double scale
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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.