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Finding the Third Proportional to 374.81 and 534.56

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Solution

The third proportional to 374.81 and 534.56 is: 762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.81 : 534.56 = 534.56 : x
  2. Step 2: Convert to fraction form
    374.81/534.56 = 534.56/x
  3. Step 3: Cross multiply
    374.81x = 534.56 × 534.56
  4. Step 4: Simplify right side
    374.81x = 285,757.07
  5. Step 5: Solve for x
    x = 285,757.07/374.81
  6. Step 6: Final answer
    x = 762.40

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.