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Finding the Third Proportional to 185,647.50 and 278,878.50

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Solution

The third proportional to 185,647.50 and 278,878.50 is: 418,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,647.50 : 278,878.50 = 278,878.50 : x
  2. Step 2: Convert to fraction form
    185,647.50/278,878.50 = 278,878.50/x
  3. Step 3: Cross multiply
    185,647.50x = 278,878.50 × 278,878.50
  4. Step 4: Simplify right side
    185,647.50x = 77,773,217,762.25
  5. Step 5: Solve for x
    x = 77,773,217,762.25/185,647.50
  6. Step 6: Final answer
    x = 418,929.52

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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.