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Finding the Third Proportional to 310,119.75 and 675,616.50

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Solution

The third proportional to 310,119.75 and 675,616.50 is: 1,471,875.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,119.75 : 675,616.50 = 675,616.50 : x
  2. Step 2: Convert to fraction form
    310,119.75/675,616.50 = 675,616.50/x
  3. Step 3: Cross multiply
    310,119.75x = 675,616.50 × 675,616.50
  4. Step 4: Simplify right side
    310,119.75x = 456,457,655,072.25
  5. Step 5: Solve for x
    x = 456,457,655,072.25/310,119.75
  6. Step 6: Final answer
    x = 1,471,875.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.