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Finding the Third Proportional to 163,816 and 358,412

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Solution

The third proportional to 163,816 and 358,412 is: 784,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,816 : 358,412 = 358,412 : x
  2. Step 2: Convert to fraction form
    163,816/358,412 = 358,412/x
  3. Step 3: Cross multiply
    163,816x = 358,412 × 358,412
  4. Step 4: Simplify right side
    163,816x = 128,459,161,744
  5. Step 5: Solve for x
    x = 128,459,161,744/163,816
  6. Step 6: Final answer
    x = 784,167.37

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.