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Finding the Fourth Proportional to 269,406.71, 404,151.60 and 91,872.20

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Solution

The fourth proportional to 269,406.71, 404,151.60 and 91,872.20 is: 137,822.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,406.71 : 404,151.60 = 91,872.20 : x
  2. Step 2: Convert to fraction form
    269,406.71/404,151.60 = 91,872.20/x
  3. Step 3: Cross multiply
    269,406.71x = 404,151.60 × 91,872.20
  4. Step 4: Simplify right side
    269,406.71x = 37,130,296,585.35
  5. Step 5: Solve for x
    x = 37,130,296,585.35/269,406.71
  6. Step 6: Final answer
    x = 137,822.46

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1.5x scale

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.