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Finding the Third Proportional to 163,880 and 354,000

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Solution

The third proportional to 163,880 and 354,000 is: 764,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,880 : 354,000 = 354,000 : x
  2. Step 2: Convert to fraction form
    163,880/354,000 = 354,000/x
  3. Step 3: Cross multiply
    163,880x = 354,000 × 354,000
  4. Step 4: Simplify right side
    163,880x = 125,316,000,000
  5. Step 5: Solve for x
    x = 125,316,000,000/163,880
  6. Step 6: Final answer
    x = 764,681.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.