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Finding the Third Proportional to 311,966.50 and 463,361

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Solution

The third proportional to 311,966.50 and 463,361 is: 688,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,966.50 : 463,361 = 463,361 : x
  2. Step 2: Convert to fraction form
    311,966.50/463,361 = 463,361/x
  3. Step 3: Cross multiply
    311,966.50x = 463,361 × 463,361
  4. Step 4: Simplify right side
    311,966.50x = 214,703,416,321
  5. Step 5: Solve for x
    x = 214,703,416,321/311,966.50
  6. Step 6: Final answer
    x = 688,225.87

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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.