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Finding the Fourth Proportional to 262,344.51, 393,641.37 and 135,961.29

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Solution

The fourth proportional to 262,344.51, 393,641.37 and 135,961.29 is: 204,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,344.51 : 393,641.37 = 135,961.29 : x
  2. Step 2: Convert to fraction form
    262,344.51/393,641.37 = 135,961.29/x
  3. Step 3: Cross multiply
    262,344.51x = 393,641.37 × 135,961.29
  4. Step 4: Simplify right side
    262,344.51x = 53,519,988,462.57
  5. Step 5: Solve for x
    x = 53,519,988,462.57/262,344.51
  6. Step 6: Final answer
    x = 204,006.51

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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.