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Finding the Third Proportional to 295.24 and 646.43

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Solution

The third proportional to 295.24 and 646.43 is: 1,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.24 : 646.43 = 646.43 : x
  2. Step 2: Convert to fraction form
    295.24/646.43 = 646.43/x
  3. Step 3: Cross multiply
    295.24x = 646.43 × 646.43
  4. Step 4: Simplify right side
    295.24x = 417,871.34
  5. Step 5: Solve for x
    x = 417,871.34/295.24
  6. Step 6: Final answer
    x = 1,415.35

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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.