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Finding the Fourth Proportional to 366, 547.92 and 345.48

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Solution

The fourth proportional to 366, 547.92 and 345.48 is: 517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366 : 547.92 = 345.48 : x
  2. Step 2: Convert to fraction form
    366/547.92 = 345.48/x
  3. Step 3: Cross multiply
    366x = 547.92 × 345.48
  4. Step 4: Simplify right side
    366x = 189,295.40
  5. Step 5: Solve for x
    x = 189,295.40/366
  6. Step 6: Final answer
    x = 517.20

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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.