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Finding the Fourth Proportional to 282,696.64, 389,991.29 and 173,702.03

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Solution

The fourth proportional to 282,696.64, 389,991.29 and 173,702.03 is: 239,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,696.64 : 389,991.29 = 173,702.03 : x
  2. Step 2: Convert to fraction form
    282,696.64/389,991.29 = 173,702.03/x
  3. Step 3: Cross multiply
    282,696.64x = 389,991.29 × 173,702.03
  4. Step 4: Simplify right side
    282,696.64x = 67,742,275,936.85
  5. Step 5: Solve for x
    x = 67,742,275,936.85/282,696.64
  6. Step 6: Final answer
    x = 239,628.87

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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.