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Finding the Third Proportional to 58,512 and 128,136

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Solution

The third proportional to 58,512 and 128,136 is: 280,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,512 : 128,136 = 128,136 : x
  2. Step 2: Convert to fraction form
    58,512/128,136 = 128,136/x
  3. Step 3: Cross multiply
    58,512x = 128,136 × 128,136
  4. Step 4: Simplify right side
    58,512x = 16,418,834,496
  5. Step 5: Solve for x
    x = 16,418,834,496/58,512
  6. Step 6: Final answer
    x = 280,606.28

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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.