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Finding the Third Proportional to 147,350 and 321,690

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Solution

The third proportional to 147,350 and 321,690 is: 702,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,350 : 321,690 = 321,690 : x
  2. Step 2: Convert to fraction form
    147,350/321,690 = 321,690/x
  3. Step 3: Cross multiply
    147,350x = 321,690 × 321,690
  4. Step 4: Simplify right side
    147,350x = 103,484,456,100
  5. Step 5: Solve for x
    x = 103,484,456,100/147,350
  6. Step 6: Final answer
    x = 702,303.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.