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Finding the Third Proportional to 262,315.50 and 393,477

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Solution

The third proportional to 262,315.50 and 393,477 is: 590,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,315.50 : 393,477 = 393,477 : x
  2. Step 2: Convert to fraction form
    262,315.50/393,477 = 393,477/x
  3. Step 3: Cross multiply
    262,315.50x = 393,477 × 393,477
  4. Step 4: Simplify right side
    262,315.50x = 154,824,149,529
  5. Step 5: Solve for x
    x = 154,824,149,529/262,315.50
  6. Step 6: Final answer
    x = 590,221.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.