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Finding the Third Proportional to 117,435 and 257,314

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Solution

The third proportional to 117,435 and 257,314 is: 563,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435 : 257,314 = 257,314 : x
  2. Step 2: Convert to fraction form
    117,435/257,314 = 257,314/x
  3. Step 3: Cross multiply
    117,435x = 257,314 × 257,314
  4. Step 4: Simplify right side
    117,435x = 66,210,494,596
  5. Step 5: Solve for x
    x = 66,210,494,596/117,435
  6. Step 6: Final answer
    x = 563,805.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.