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Finding the Third Proportional to 384.13 and 577.19

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Solution

The third proportional to 384.13 and 577.19 is: 867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.13 : 577.19 = 577.19 : x
  2. Step 2: Convert to fraction form
    384.13/577.19 = 577.19/x
  3. Step 3: Cross multiply
    384.13x = 577.19 × 577.19
  4. Step 4: Simplify right side
    384.13x = 333,145.41
  5. Step 5: Solve for x
    x = 333,145.41/384.13
  6. Step 6: Final answer
    x = 867.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.