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Finding the Third Proportional to 448.25 and 703.63

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Solution

The third proportional to 448.25 and 703.63 is: 1,104.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.25 : 703.63 = 703.63 : x
  2. Step 2: Convert to fraction form
    448.25/703.63 = 703.63/x
  3. Step 3: Cross multiply
    448.25x = 703.63 × 703.63
  4. Step 4: Simplify right side
    448.25x = 495,088.14
  5. Step 5: Solve for x
    x = 495,088.14/448.25
  6. Step 6: Final answer
    x = 1,104.49

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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.