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Finding the Third Proportional to 295.13 and 646.36

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Solution

The third proportional to 295.13 and 646.36 is: 1,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.13 : 646.36 = 646.36 : x
  2. Step 2: Convert to fraction form
    295.13/646.36 = 646.36/x
  3. Step 3: Cross multiply
    295.13x = 646.36 × 646.36
  4. Step 4: Simplify right side
    295.13x = 417,780.44
  5. Step 5: Solve for x
    x = 417,780.44/295.13
  6. Step 6: Final answer
    x = 1,415.61

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.