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Finding the Fourth Proportional to 279,692.91, 386,004.06 and 170,791.23

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Solution

The fourth proportional to 279,692.91, 386,004.06 and 170,791.23 is: 235,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,692.91 : 386,004.06 = 170,791.23 : x
  2. Step 2: Convert to fraction form
    279,692.91/386,004.06 = 170,791.23/x
  3. Step 3: Cross multiply
    279,692.91x = 386,004.06 × 170,791.23
  4. Step 4: Simplify right side
    279,692.91x = 65,926,108,192.39
  5. Step 5: Solve for x
    x = 65,926,108,192.39/279,692.91
  6. Step 6: Final answer
    x = 235,708.90

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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.