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Finding the Third Proportional to 199,392.50 and 306,480

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Solution

The third proportional to 199,392.50 and 306,480 is: 471,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,392.50 : 306,480 = 306,480 : x
  2. Step 2: Convert to fraction form
    199,392.50/306,480 = 306,480/x
  3. Step 3: Cross multiply
    199,392.50x = 306,480 × 306,480
  4. Step 4: Simplify right side
    199,392.50x = 93,929,990,400
  5. Step 5: Solve for x
    x = 93,929,990,400/199,392.50
  6. Step 6: Final answer
    x = 471,080.86

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.