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Finding the Fourth Proportional to 553.52, 829.98 and 245.18

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Solution

The fourth proportional to 553.52, 829.98 and 245.18 is: 367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.52 : 829.98 = 245.18 : x
  2. Step 2: Convert to fraction form
    553.52/829.98 = 245.18/x
  3. Step 3: Cross multiply
    553.52x = 829.98 × 245.18
  4. Step 4: Simplify right side
    553.52x = 203,494.50
  5. Step 5: Solve for x
    x = 203,494.50/553.52
  6. Step 6: Final answer
    x = 367.64

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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.