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Finding the Fourth Proportional to 186, 278.36 and 175.48

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Solution

The fourth proportional to 186, 278.36 and 175.48 is: 262.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186 : 278.36 = 175.48 : x
  2. Step 2: Convert to fraction form
    186/278.36 = 175.48/x
  3. Step 3: Cross multiply
    186x = 278.36 × 175.48
  4. Step 4: Simplify right side
    186x = 48,846.61
  5. Step 5: Solve for x
    x = 48,846.61/186
  6. Step 6: Final answer
    x = 262.62

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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.