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Finding the Third Proportional to 145,418 and 213,332

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Solution

The third proportional to 145,418 and 213,332 is: 312,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,418 : 213,332 = 213,332 : x
  2. Step 2: Convert to fraction form
    145,418/213,332 = 213,332/x
  3. Step 3: Cross multiply
    145,418x = 213,332 × 213,332
  4. Step 4: Simplify right side
    145,418x = 45,510,542,224
  5. Step 5: Solve for x
    x = 45,510,542,224/145,418
  6. Step 6: Final answer
    x = 312,963.61

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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.