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Finding the Third Proportional to 242,557.50 and 518,364.50

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Solution

The third proportional to 242,557.50 and 518,364.50 is: 1,107,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,557.50 : 518,364.50 = 518,364.50 : x
  2. Step 2: Convert to fraction form
    242,557.50/518,364.50 = 518,364.50/x
  3. Step 3: Cross multiply
    242,557.50x = 518,364.50 × 518,364.50
  4. Step 4: Simplify right side
    242,557.50x = 268,701,754,860.25
  5. Step 5: Solve for x
    x = 268,701,754,860.25/242,557.50
  6. Step 6: Final answer
    x = 1,107,785.80

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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.