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Finding the Third Proportional to 155,258.25 and 219,735

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Solution

The third proportional to 155,258.25 and 219,735 is: 310,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,258.25 : 219,735 = 219,735 : x
  2. Step 2: Convert to fraction form
    155,258.25/219,735 = 219,735/x
  3. Step 3: Cross multiply
    155,258.25x = 219,735 × 219,735
  4. Step 4: Simplify right side
    155,258.25x = 48,283,470,225
  5. Step 5: Solve for x
    x = 48,283,470,225/155,258.25
  6. Step 6: Final answer
    x = 310,988.11

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.