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Finding the Third Proportional to 303,630 and 453,772.50

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Solution

The third proportional to 303,630 and 453,772.50 is: 678,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,630 : 453,772.50 = 453,772.50 : x
  2. Step 2: Convert to fraction form
    303,630/453,772.50 = 453,772.50/x
  3. Step 3: Cross multiply
    303,630x = 453,772.50 × 453,772.50
  4. Step 4: Simplify right side
    303,630x = 205,909,481,756.25
  5. Step 5: Solve for x
    x = 205,909,481,756.25/303,630
  6. Step 6: Final answer
    x = 678,159.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.