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Finding the Third Proportional to 143,136 and 310,868

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Solution

The third proportional to 143,136 and 310,868 is: 675,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136 : 310,868 = 310,868 : x
  2. Step 2: Convert to fraction form
    143,136/310,868 = 310,868/x
  3. Step 3: Cross multiply
    143,136x = 310,868 × 310,868
  4. Step 4: Simplify right side
    143,136x = 96,638,913,424
  5. Step 5: Solve for x
    x = 96,638,913,424/143,136
  6. Step 6: Final answer
    x = 675,154.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.