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Finding the Fourth Proportional to 268,969.20, 403,453.80 and 174,490.80

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Solution

The fourth proportional to 268,969.20, 403,453.80 and 174,490.80 is: 261,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,969.20 : 403,453.80 = 174,490.80 : x
  2. Step 2: Convert to fraction form
    268,969.20/403,453.80 = 174,490.80/x
  3. Step 3: Cross multiply
    268,969.20x = 403,453.80 × 174,490.80
  4. Step 4: Simplify right side
    268,969.20x = 70,398,976,325.04
  5. Step 5: Solve for x
    x = 70,398,976,325.04/268,969.20
  6. Step 6: Final answer
    x = 261,736.20

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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.