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Finding the Third Proportional to 170,345 and 358,330

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Solution

The third proportional to 170,345 and 358,330 is: 753,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,345 : 358,330 = 358,330 : x
  2. Step 2: Convert to fraction form
    170,345/358,330 = 358,330/x
  3. Step 3: Cross multiply
    170,345x = 358,330 × 358,330
  4. Step 4: Simplify right side
    170,345x = 128,400,388,900
  5. Step 5: Solve for x
    x = 128,400,388,900/170,345
  6. Step 6: Final answer
    x = 753,766.70

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.