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Finding the Third Proportional to 277.59 and 405.84

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Solution

The third proportional to 277.59 and 405.84 is: 593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.59 : 405.84 = 405.84 : x
  2. Step 2: Convert to fraction form
    277.59/405.84 = 405.84/x
  3. Step 3: Cross multiply
    277.59x = 405.84 × 405.84
  4. Step 4: Simplify right side
    277.59x = 164,709.15
  5. Step 5: Solve for x
    x = 164,709.15/277.59
  6. Step 6: Final answer
    x = 593.35

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.