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Finding the Fourth Proportional to 533.08, 799.68 and 186.40

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Solution

The fourth proportional to 533.08, 799.68 and 186.40 is: 279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.08 : 799.68 = 186.40 : x
  2. Step 2: Convert to fraction form
    533.08/799.68 = 186.40/x
  3. Step 3: Cross multiply
    533.08x = 799.68 × 186.40
  4. Step 4: Simplify right side
    533.08x = 149,060.35
  5. Step 5: Solve for x
    x = 149,060.35/533.08
  6. Step 6: Final answer
    x = 279.62

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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.