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Finding the Third Proportional to 358,971.75 and 555,763.78

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Solution

The third proportional to 358,971.75 and 555,763.78 is: 860,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,971.75 : 555,763.78 = 555,763.78 : x
  2. Step 2: Convert to fraction form
    358,971.75/555,763.78 = 555,763.78/x
  3. Step 3: Cross multiply
    358,971.75x = 555,763.78 × 555,763.78
  4. Step 4: Simplify right side
    358,971.75x = 308,873,380,549.30
  5. Step 5: Solve for x
    x = 308,873,380,549.30/358,971.75
  6. Step 6: Final answer
    x = 860,439.24

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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.