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Finding the Third Proportional to 379.50 and 574.63

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Solution

The third proportional to 379.50 and 574.63 is: 870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.50 : 574.63 = 574.63 : x
  2. Step 2: Convert to fraction form
    379.50/574.63 = 574.63/x
  3. Step 3: Cross multiply
    379.50x = 574.63 × 574.63
  4. Step 4: Simplify right side
    379.50x = 330,193.89
  5. Step 5: Solve for x
    x = 330,193.89/379.50
  6. Step 6: Final answer
    x = 870.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.