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Finding the Third Proportional to 336.25 and 528.63

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Solution

The third proportional to 336.25 and 528.63 is: 831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.25 : 528.63 = 528.63 : x
  2. Step 2: Convert to fraction form
    336.25/528.63 = 528.63/x
  3. Step 3: Cross multiply
    336.25x = 528.63 × 528.63
  4. Step 4: Simplify right side
    336.25x = 279,444.39
  5. Step 5: Solve for x
    x = 279,444.39/336.25
  6. Step 6: Final answer
    x = 831.06

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.