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Finding the Third Proportional to 278,072 and 607,136

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Solution

The third proportional to 278,072 and 607,136 is: 1,325,606.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,072 : 607,136 = 607,136 : x
  2. Step 2: Convert to fraction form
    278,072/607,136 = 607,136/x
  3. Step 3: Cross multiply
    278,072x = 607,136 × 607,136
  4. Step 4: Simplify right side
    278,072x = 368,614,122,496
  5. Step 5: Solve for x
    x = 368,614,122,496/278,072
  6. Step 6: Final answer
    x = 1,325,606.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.