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Finding the Third Proportional to 161,520 and 377,280

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Solution

The third proportional to 161,520 and 377,280 is: 881,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,520 : 377,280 = 377,280 : x
  2. Step 2: Convert to fraction form
    161,520/377,280 = 377,280/x
  3. Step 3: Cross multiply
    161,520x = 377,280 × 377,280
  4. Step 4: Simplify right side
    161,520x = 142,340,198,400
  5. Step 5: Solve for x
    x = 142,340,198,400/161,520
  6. Step 6: Final answer
    x = 881,254.32

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.