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Finding the Third Proportional to 144,618 and 216,159

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Solution

The third proportional to 144,618 and 216,159 is: 323,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,618 : 216,159 = 216,159 : x
  2. Step 2: Convert to fraction form
    144,618/216,159 = 216,159/x
  3. Step 3: Cross multiply
    144,618x = 216,159 × 216,159
  4. Step 4: Simplify right side
    144,618x = 46,724,713,281
  5. Step 5: Solve for x
    x = 46,724,713,281/144,618
  6. Step 6: Final answer
    x = 323,090.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.