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Finding the Fourth Proportional to 171,309.57, 236,633.04 and 131,515.08

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Solution

The fourth proportional to 171,309.57, 236,633.04 and 131,515.08 is: 181,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,309.57 : 236,633.04 = 131,515.08 : x
  2. Step 2: Convert to fraction form
    171,309.57/236,633.04 = 131,515.08/x
  3. Step 3: Cross multiply
    171,309.57x = 236,633.04 × 131,515.08
  4. Step 4: Simplify right side
    171,309.57x = 31,120,813,186.24
  5. Step 5: Solve for x
    x = 31,120,813,186.24/171,309.57
  6. Step 6: Final answer
    x = 181,664.18

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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.