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Finding the Fourth Proportional to 553.37, 829.42 and 245.18

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Solution

The fourth proportional to 553.37, 829.42 and 245.18 is: 367.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.37 : 829.42 = 245.18 : x
  2. Step 2: Convert to fraction form
    553.37/829.42 = 245.18/x
  3. Step 3: Cross multiply
    553.37x = 829.42 × 245.18
  4. Step 4: Simplify right side
    553.37x = 203,355.37
  5. Step 5: Solve for x
    x = 203,355.37/553.37
  6. Step 6: Final answer
    x = 367.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.