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Finding the Third Proportional to 386.81 and 590.06

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Solution

The third proportional to 386.81 and 590.06 is: 900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.81 : 590.06 = 590.06 : x
  2. Step 2: Convert to fraction form
    386.81/590.06 = 590.06/x
  3. Step 3: Cross multiply
    386.81x = 590.06 × 590.06
  4. Step 4: Simplify right side
    386.81x = 348,173.75
  5. Step 5: Solve for x
    x = 348,173.75/386.81
  6. Step 6: Final answer
    x = 900.11

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.