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Finding the Fourth Proportional to 269,720.60, 404,742.90 and 111,932.60

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Solution

The fourth proportional to 269,720.60, 404,742.90 and 111,932.60 is: 167,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,720.60 : 404,742.90 = 111,932.60 : x
  2. Step 2: Convert to fraction form
    269,720.60/404,742.90 = 111,932.60/x
  3. Step 3: Cross multiply
    269,720.60x = 404,742.90 × 111,932.60
  4. Step 4: Simplify right side
    269,720.60x = 45,303,925,128.54
  5. Step 5: Solve for x
    x = 45,303,925,128.54/269,720.60
  6. Step 6: Final answer
    x = 167,966.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.