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Finding the Third Proportional to 231,364.50 and 345,136.50

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Solution

The third proportional to 231,364.50 and 345,136.50 is: 514,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,364.50 : 345,136.50 = 345,136.50 : x
  2. Step 2: Convert to fraction form
    231,364.50/345,136.50 = 345,136.50/x
  3. Step 3: Cross multiply
    231,364.50x = 345,136.50 × 345,136.50
  4. Step 4: Simplify right side
    231,364.50x = 119,119,203,632.25
  5. Step 5: Solve for x
    x = 119,119,203,632.25/231,364.50
  6. Step 6: Final answer
    x = 514,855.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.