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Finding the Third Proportional to 305,910 and 662,218.50

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Solution

The third proportional to 305,910 and 662,218.50 is: 1,433,537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910 : 662,218.50 = 662,218.50 : x
  2. Step 2: Convert to fraction form
    305,910/662,218.50 = 662,218.50/x
  3. Step 3: Cross multiply
    305,910x = 662,218.50 × 662,218.50
  4. Step 4: Simplify right side
    305,910x = 438,533,341,742.25
  5. Step 5: Solve for x
    x = 438,533,341,742.25/305,910
  6. Step 6: Final answer
    x = 1,433,537.12

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.