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Finding the Third Proportional to 143,136 and 210,324

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Solution

The third proportional to 143,136 and 210,324 is: 309,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136 : 210,324 = 210,324 : x
  2. Step 2: Convert to fraction form
    143,136/210,324 = 210,324/x
  3. Step 3: Cross multiply
    143,136x = 210,324 × 210,324
  4. Step 4: Simplify right side
    143,136x = 44,236,184,976
  5. Step 5: Solve for x
    x = 44,236,184,976/143,136
  6. Step 6: Final answer
    x = 309,050.03

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.