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Finding the Third Proportional to 346.15 and 505.62

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Solution

The third proportional to 346.15 and 505.62 is: 738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.15 : 505.62 = 505.62 : x
  2. Step 2: Convert to fraction form
    346.15/505.62 = 505.62/x
  3. Step 3: Cross multiply
    346.15x = 505.62 × 505.62
  4. Step 4: Simplify right side
    346.15x = 255,648.74
  5. Step 5: Solve for x
    x = 255,648.74/346.15
  6. Step 6: Final answer
    x = 738.55

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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.