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Finding the Fourth Proportional to 269,571.30, 372,007.32 and 148,720.11

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Solution

The fourth proportional to 269,571.30, 372,007.32 and 148,720.11 is: 205,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,571.30 : 372,007.32 = 148,720.11 : x
  2. Step 2: Convert to fraction form
    269,571.30/372,007.32 = 148,720.11/x
  3. Step 3: Cross multiply
    269,571.30x = 372,007.32 × 148,720.11
  4. Step 4: Simplify right side
    269,571.30x = 55,324,969,551.21
  5. Step 5: Solve for x
    x = 55,324,969,551.21/269,571.30
  6. Step 6: Final answer
    x = 205,233.16

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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.