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Finding the Third Proportional to 305,361 and 401,548.50

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Solution

The third proportional to 305,361 and 401,548.50 is: 528,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,361 : 401,548.50 = 401,548.50 : x
  2. Step 2: Convert to fraction form
    305,361/401,548.50 = 401,548.50/x
  3. Step 3: Cross multiply
    305,361x = 401,548.50 × 401,548.50
  4. Step 4: Simplify right side
    305,361x = 161,241,197,852.25
  5. Step 5: Solve for x
    x = 161,241,197,852.25/305,361
  6. Step 6: Final answer
    x = 528,034.68

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.