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Finding the Third Proportional to 218,988 and 242,028

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Solution

The third proportional to 218,988 and 242,028 is: 267,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,988 : 242,028 = 242,028 : x
  2. Step 2: Convert to fraction form
    218,988/242,028 = 242,028/x
  3. Step 3: Cross multiply
    218,988x = 242,028 × 242,028
  4. Step 4: Simplify right side
    218,988x = 58,577,552,784
  5. Step 5: Solve for x
    x = 58,577,552,784/218,988
  6. Step 6: Final answer
    x = 267,492.07

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.