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Finding the Third Proportional to 455.06 and 625.22

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Solution

The third proportional to 455.06 and 625.22 is: 859.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.06 : 625.22 = 625.22 : x
  2. Step 2: Convert to fraction form
    455.06/625.22 = 625.22/x
  3. Step 3: Cross multiply
    455.06x = 625.22 × 625.22
  4. Step 4: Simplify right side
    455.06x = 390,898.49
  5. Step 5: Solve for x
    x = 390,898.49/455.06
  6. Step 6: Final answer
    x = 859.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.