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Finding the Third Proportional to 236,700 and 509,490

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Solution

The third proportional to 236,700 and 509,490 is: 1,096,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,700 : 509,490 = 509,490 : x
  2. Step 2: Convert to fraction form
    236,700/509,490 = 509,490/x
  3. Step 3: Cross multiply
    236,700x = 509,490 × 509,490
  4. Step 4: Simplify right side
    236,700x = 259,580,060,100
  5. Step 5: Solve for x
    x = 259,580,060,100/236,700
  6. Step 6: Final answer
    x = 1,096,662.70

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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.