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Finding the Third Proportional to 200,556 and 435,693

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Solution

The third proportional to 200,556 and 435,693 is: 946,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,556 : 435,693 = 435,693 : x
  2. Step 2: Convert to fraction form
    200,556/435,693 = 435,693/x
  3. Step 3: Cross multiply
    200,556x = 435,693 × 435,693
  4. Step 4: Simplify right side
    200,556x = 189,828,390,249
  5. Step 5: Solve for x
    x = 189,828,390,249/200,556
  6. Step 6: Final answer
    x = 946,510.65

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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.