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Finding the Third Proportional to 188,136 and 291,429

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Solution

The third proportional to 188,136 and 291,429 is: 451,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,136 : 291,429 = 291,429 : x
  2. Step 2: Convert to fraction form
    188,136/291,429 = 291,429/x
  3. Step 3: Cross multiply
    188,136x = 291,429 × 291,429
  4. Step 4: Simplify right side
    188,136x = 84,930,862,041
  5. Step 5: Solve for x
    x = 84,930,862,041/188,136
  6. Step 6: Final answer
    x = 451,433.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.