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Finding the Third Proportional to 145,148 and 213,452

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Solution

The third proportional to 145,148 and 213,452 is: 313,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,148 : 213,452 = 213,452 : x
  2. Step 2: Convert to fraction form
    145,148/213,452 = 213,452/x
  3. Step 3: Cross multiply
    145,148x = 213,452 × 213,452
  4. Step 4: Simplify right side
    145,148x = 45,561,756,304
  5. Step 5: Solve for x
    x = 45,561,756,304/145,148
  6. Step 6: Final answer
    x = 313,898.62

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.