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Finding the Third Proportional to 163,440 and 351,900

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Solution

The third proportional to 163,440 and 351,900 is: 757,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,440 : 351,900 = 351,900 : x
  2. Step 2: Convert to fraction form
    163,440/351,900 = 351,900/x
  3. Step 3: Cross multiply
    163,440x = 351,900 × 351,900
  4. Step 4: Simplify right side
    163,440x = 123,833,610,000
  5. Step 5: Solve for x
    x = 123,833,610,000/163,440
  6. Step 6: Final answer
    x = 757,670.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.