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Finding the Third Proportional to 66,730 and 144,998

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Solution

The third proportional to 66,730 and 144,998 is: 315,066.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730 : 144,998 = 144,998 : x
  2. Step 2: Convert to fraction form
    66,730/144,998 = 144,998/x
  3. Step 3: Cross multiply
    66,730x = 144,998 × 144,998
  4. Step 4: Simplify right side
    66,730x = 21,024,420,004
  5. Step 5: Solve for x
    x = 21,024,420,004/66,730
  6. Step 6: Final answer
    x = 315,066.99

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.