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Finding the Third Proportional to 201,915 and 424,743

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Solution

The third proportional to 201,915 and 424,743 is: 893,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,915 : 424,743 = 424,743 : x
  2. Step 2: Convert to fraction form
    201,915/424,743 = 424,743/x
  3. Step 3: Cross multiply
    201,915x = 424,743 × 424,743
  4. Step 4: Simplify right side
    201,915x = 180,406,616,049
  5. Step 5: Solve for x
    x = 180,406,616,049/201,915
  6. Step 6: Final answer
    x = 893,478.03

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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.