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Finding the Third Proportional to 147,219.75 and 317,754

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Solution

The third proportional to 147,219.75 and 317,754 is: 685,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,219.75 : 317,754 = 317,754 : x
  2. Step 2: Convert to fraction form
    147,219.75/317,754 = 317,754/x
  3. Step 3: Cross multiply
    147,219.75x = 317,754 × 317,754
  4. Step 4: Simplify right side
    147,219.75x = 100,967,604,516
  5. Step 5: Solve for x
    x = 100,967,604,516/147,219.75
  6. Step 6: Final answer
    x = 685,829.21

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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.