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Finding the Third Proportional to 179,293 and 390,130

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Solution

The third proportional to 179,293 and 390,130 is: 848,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,293 : 390,130 = 390,130 : x
  2. Step 2: Convert to fraction form
    179,293/390,130 = 390,130/x
  3. Step 3: Cross multiply
    179,293x = 390,130 × 390,130
  4. Step 4: Simplify right side
    179,293x = 152,201,416,900
  5. Step 5: Solve for x
    x = 152,201,416,900/179,293
  6. Step 6: Final answer
    x = 848,897.71

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.