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Finding the Fourth Proportional to 269,997.71, 372,589.69 and 149,136.40

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Solution

The fourth proportional to 269,997.71, 372,589.69 and 149,136.40 is: 205,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,997.71 : 372,589.69 = 149,136.40 : x
  2. Step 2: Convert to fraction form
    269,997.71/372,589.69 = 149,136.40/x
  3. Step 3: Cross multiply
    269,997.71x = 372,589.69 × 149,136.40
  4. Step 4: Simplify right side
    269,997.71x = 55,566,685,043.72
  5. Step 5: Solve for x
    x = 55,566,685,043.72/269,997.71
  6. Step 6: Final answer
    x = 205,804.28

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1.5x scale

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.