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Finding the Third Proportional to 72,495 and 159,706

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Solution

The third proportional to 72,495 and 159,706 is: 351,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,495 : 159,706 = 159,706 : x
  2. Step 2: Convert to fraction form
    72,495/159,706 = 159,706/x
  3. Step 3: Cross multiply
    72,495x = 159,706 × 159,706
  4. Step 4: Simplify right side
    72,495x = 25,506,006,436
  5. Step 5: Solve for x
    x = 25,506,006,436/72,495
  6. Step 6: Final answer
    x = 351,831.25

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.