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Finding the Third Proportional to 72,484 and 153,680

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Solution

The third proportional to 72,484 and 153,680 is: 325,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,484 : 153,680 = 153,680 : x
  2. Step 2: Convert to fraction form
    72,484/153,680 = 153,680/x
  3. Step 3: Cross multiply
    72,484x = 153,680 × 153,680
  4. Step 4: Simplify right side
    72,484x = 23,617,542,400
  5. Step 5: Solve for x
    x = 23,617,542,400/72,484
  6. Step 6: Final answer
    x = 325,831.11

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.