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Finding the Third Proportional to 179,420 and 377,428

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Solution

The third proportional to 179,420 and 377,428 is: 793,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,420 : 377,428 = 377,428 : x
  2. Step 2: Convert to fraction form
    179,420/377,428 = 377,428/x
  3. Step 3: Cross multiply
    179,420x = 377,428 × 377,428
  4. Step 4: Simplify right side
    179,420x = 142,451,895,184
  5. Step 5: Solve for x
    x = 142,451,895,184/179,420
  6. Step 6: Final answer
    x = 793,957.73

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.