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Finding the Third Proportional to 302,631 and 424,129

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Solution

The third proportional to 302,631 and 424,129 is: 594,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,631 : 424,129 = 424,129 : x
  2. Step 2: Convert to fraction form
    302,631/424,129 = 424,129/x
  3. Step 3: Cross multiply
    302,631x = 424,129 × 424,129
  4. Step 4: Simplify right side
    302,631x = 179,885,408,641
  5. Step 5: Solve for x
    x = 179,885,408,641/302,631
  6. Step 6: Final answer
    x = 594,405.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.