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Finding the Third Proportional to 162,567 and 390,663

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Solution

The third proportional to 162,567 and 390,663 is: 938,798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,567 : 390,663 = 390,663 : x
  2. Step 2: Convert to fraction form
    162,567/390,663 = 390,663/x
  3. Step 3: Cross multiply
    162,567x = 390,663 × 390,663
  4. Step 4: Simplify right side
    162,567x = 152,617,579,569
  5. Step 5: Solve for x
    x = 152,617,579,569/162,567
  6. Step 6: Final answer
    x = 938,798.03

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.