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Finding the Third Proportional to 242,558.50 and 518,366.50

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Solution

The third proportional to 242,558.50 and 518,366.50 is: 1,107,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,558.50 : 518,366.50 = 518,366.50 : x
  2. Step 2: Convert to fraction form
    242,558.50/518,366.50 = 518,366.50/x
  3. Step 3: Cross multiply
    242,558.50x = 518,366.50 × 518,366.50
  4. Step 4: Simplify right side
    242,558.50x = 268,703,828,322.25
  5. Step 5: Solve for x
    x = 268,703,828,322.25/242,558.50
  6. Step 6: Final answer
    x = 1,107,789.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.