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Finding the Third Proportional to 343,389 and 505,152

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Solution

The third proportional to 343,389 and 505,152 is: 743,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,389 : 505,152 = 505,152 : x
  2. Step 2: Convert to fraction form
    343,389/505,152 = 505,152/x
  3. Step 3: Cross multiply
    343,389x = 505,152 × 505,152
  4. Step 4: Simplify right side
    343,389x = 255,178,543,104
  5. Step 5: Solve for x
    x = 255,178,543,104/343,389
  6. Step 6: Final answer
    x = 743,117.99

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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.