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Finding the Third Proportional to 174,987 and 258,790.50

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Solution

The third proportional to 174,987 and 258,790.50 is: 382,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,987 : 258,790.50 = 258,790.50 : x
  2. Step 2: Convert to fraction form
    174,987/258,790.50 = 258,790.50/x
  3. Step 3: Cross multiply
    174,987x = 258,790.50 × 258,790.50
  4. Step 4: Simplify right side
    174,987x = 66,972,522,890.25
  5. Step 5: Solve for x
    x = 66,972,522,890.25/174,987
  6. Step 6: Final answer
    x = 382,728.56

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.