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Finding the Fourth Proportional to 281,980.36, 389,131.86 and 174,529

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Solution

The fourth proportional to 281,980.36, 389,131.86 and 174,529 is: 240,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,980.36 : 389,131.86 = 174,529 : x
  2. Step 2: Convert to fraction form
    281,980.36/389,131.86 = 174,529/x
  3. Step 3: Cross multiply
    281,980.36x = 389,131.86 × 174,529
  4. Step 4: Simplify right side
    281,980.36x = 67,914,794,393.94
  5. Step 5: Solve for x
    x = 67,914,794,393.94/281,980.36
  6. Step 6: Final answer
    x = 240,849.38

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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.