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Finding the Third Proportional to 137,972 and 302,440

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Solution

The third proportional to 137,972 and 302,440 is: 662,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,972 : 302,440 = 302,440 : x
  2. Step 2: Convert to fraction form
    137,972/302,440 = 302,440/x
  3. Step 3: Cross multiply
    137,972x = 302,440 × 302,440
  4. Step 4: Simplify right side
    137,972x = 91,469,953,600
  5. Step 5: Solve for x
    x = 91,469,953,600/137,972
  6. Step 6: Final answer
    x = 662,960.26

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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.