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Finding the Third Proportional to 302.91 and 410.48

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Solution

The third proportional to 302.91 and 410.48 is: 556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.91 : 410.48 = 410.48 : x
  2. Step 2: Convert to fraction form
    302.91/410.48 = 410.48/x
  3. Step 3: Cross multiply
    302.91x = 410.48 × 410.48
  4. Step 4: Simplify right side
    302.91x = 168,497.42
  5. Step 5: Solve for x
    x = 168,497.42/302.91
  6. Step 6: Final answer
    x = 556.27

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.