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Finding the Third Proportional to 283,790 and 423,224

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Solution

The third proportional to 283,790 and 423,224 is: 631,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,790 : 423,224 = 423,224 : x
  2. Step 2: Convert to fraction form
    283,790/423,224 = 423,224/x
  3. Step 3: Cross multiply
    283,790x = 423,224 × 423,224
  4. Step 4: Simplify right side
    283,790x = 179,118,554,176
  5. Step 5: Solve for x
    x = 179,118,554,176/283,790
  6. Step 6: Final answer
    x = 631,165.84

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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.