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Finding the Third Proportional to 245,781 and 375,813

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Solution

The third proportional to 245,781 and 375,813 is: 574,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,781 : 375,813 = 375,813 : x
  2. Step 2: Convert to fraction form
    245,781/375,813 = 375,813/x
  3. Step 3: Cross multiply
    245,781x = 375,813 × 375,813
  4. Step 4: Simplify right side
    245,781x = 141,235,410,969
  5. Step 5: Solve for x
    x = 141,235,410,969/245,781
  6. Step 6: Final answer
    x = 574,639.26

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.