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Finding the Fourth Proportional to 269,880.66, 372,433.34 and 149,021.88

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Solution

The fourth proportional to 269,880.66, 372,433.34 and 149,021.88 is: 205,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,880.66 : 372,433.34 = 149,021.88 : x
  2. Step 2: Convert to fraction form
    269,880.66/372,433.34 = 149,021.88/x
  3. Step 3: Cross multiply
    269,880.66x = 372,433.34 × 149,021.88
  4. Step 4: Simplify right side
    269,880.66x = 55,500,715,477.41
  5. Step 5: Solve for x
    x = 55,500,715,477.41/269,880.66
  6. Step 6: Final answer
    x = 205,649.10

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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.