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Finding the Third Proportional to 165,349 and 358,886

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Solution

The third proportional to 165,349 and 358,886 is: 778,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,349 : 358,886 = 358,886 : x
  2. Step 2: Convert to fraction form
    165,349/358,886 = 358,886/x
  3. Step 3: Cross multiply
    165,349x = 358,886 × 358,886
  4. Step 4: Simplify right side
    165,349x = 128,799,160,996
  5. Step 5: Solve for x
    x = 128,799,160,996/165,349
  6. Step 6: Final answer
    x = 778,953.37

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.