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Finding the Fourth Proportional to 269,662.80, 372,208.68 and 156,522

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Solution

The fourth proportional to 269,662.80, 372,208.68 and 156,522 is: 216,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,662.80 : 372,208.68 = 156,522 : x
  2. Step 2: Convert to fraction form
    269,662.80/372,208.68 = 156,522/x
  3. Step 3: Cross multiply
    269,662.80x = 372,208.68 × 156,522
  4. Step 4: Simplify right side
    269,662.80x = 58,258,847,010.96
  5. Step 5: Solve for x
    x = 58,258,847,010.96/269,662.80
  6. Step 6: Final answer
    x = 216,043.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.