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Finding the Third Proportional to 302.06 and 392.06

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Solution

The third proportional to 302.06 and 392.06 is: 508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.06 : 392.06 = 392.06 : x
  2. Step 2: Convert to fraction form
    302.06/392.06 = 392.06/x
  3. Step 3: Cross multiply
    302.06x = 392.06 × 392.06
  4. Step 4: Simplify right side
    302.06x = 153,713.00
  5. Step 5: Solve for x
    x = 153,713.00/302.06
  6. Step 6: Final answer
    x = 508.88

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.