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Finding the Third Proportional to 230.77 and 342.77

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Solution

The third proportional to 230.77 and 342.77 is: 509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.77 : 342.77 = 342.77 : x
  2. Step 2: Convert to fraction form
    230.77/342.77 = 342.77/x
  3. Step 3: Cross multiply
    230.77x = 342.77 × 342.77
  4. Step 4: Simplify right side
    230.77x = 117,493.63
  5. Step 5: Solve for x
    x = 117,493.63/230.77
  6. Step 6: Final answer
    x = 509.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.