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Finding the Third Proportional to 305.19 and 468.56

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Solution

The third proportional to 305.19 and 468.56 is: 719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.19 : 468.56 = 468.56 : x
  2. Step 2: Convert to fraction form
    305.19/468.56 = 468.56/x
  3. Step 3: Cross multiply
    305.19x = 468.56 × 468.56
  4. Step 4: Simplify right side
    305.19x = 219,550.82
  5. Step 5: Solve for x
    x = 219,550.82/305.19
  6. Step 6: Final answer
    x = 719.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.