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Finding the Third Proportional to 245,549.25 and 378,459

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Solution

The third proportional to 245,549.25 and 378,459 is: 583,309.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,549.25 : 378,459 = 378,459 : x
  2. Step 2: Convert to fraction form
    245,549.25/378,459 = 378,459/x
  3. Step 3: Cross multiply
    245,549.25x = 378,459 × 378,459
  4. Step 4: Simplify right side
    245,549.25x = 143,231,214,681
  5. Step 5: Solve for x
    x = 143,231,214,681/245,549.25
  6. Step 6: Final answer
    x = 583,309.52

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.