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Finding the Third Proportional to 71,809.88 and 154,281.38

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Solution

The third proportional to 71,809.88 and 154,281.38 is: 331,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,809.88 : 154,281.38 = 154,281.38 : x
  2. Step 2: Convert to fraction form
    71,809.88/154,281.38 = 154,281.38/x
  3. Step 3: Cross multiply
    71,809.88x = 154,281.38 × 154,281.38
  4. Step 4: Simplify right side
    71,809.88x = 23,802,742,671.89
  5. Step 5: Solve for x
    x = 23,802,742,671.89/71,809.88
  6. Step 6: Final answer
    x = 331,468.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.