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Finding the Third Proportional to 187,136 and 402,292.50

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Solution

The third proportional to 187,136 and 402,292.50 is: 864,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,136 : 402,292.50 = 402,292.50 : x
  2. Step 2: Convert to fraction form
    187,136/402,292.50 = 402,292.50/x
  3. Step 3: Cross multiply
    187,136x = 402,292.50 × 402,292.50
  4. Step 4: Simplify right side
    187,136x = 161,839,255,556.25
  5. Step 5: Solve for x
    x = 161,839,255,556.25/187,136
  6. Step 6: Final answer
    x = 864,821.60

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.