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Finding the Third Proportional to 387.13 and 599.75

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Solution

The third proportional to 387.13 and 599.75 is: 929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.13 : 599.75 = 599.75 : x
  2. Step 2: Convert to fraction form
    387.13/599.75 = 599.75/x
  3. Step 3: Cross multiply
    387.13x = 599.75 × 599.75
  4. Step 4: Simplify right side
    387.13x = 359,700.06
  5. Step 5: Solve for x
    x = 359,700.06/387.13
  6. Step 6: Final answer
    x = 929.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.