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Finding the Third Proportional to 280,132 and 614,680

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Solution

The third proportional to 280,132 and 614,680 is: 1,348,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,132 : 614,680 = 614,680 : x
  2. Step 2: Convert to fraction form
    280,132/614,680 = 614,680/x
  3. Step 3: Cross multiply
    280,132x = 614,680 × 614,680
  4. Step 4: Simplify right side
    280,132x = 377,831,502,400
  5. Step 5: Solve for x
    x = 377,831,502,400/280,132
  6. Step 6: Final answer
    x = 1,348,762.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.