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Finding the Fourth Proportional to 268,170.85, 401,914.31 and 125,701.88

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Solution

The fourth proportional to 268,170.85, 401,914.31 and 125,701.88 is: 188,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,170.85 : 401,914.31 = 125,701.88 : x
  2. Step 2: Convert to fraction form
    268,170.85/401,914.31 = 125,701.88/x
  3. Step 3: Cross multiply
    268,170.85x = 401,914.31 × 125,701.88
  4. Step 4: Simplify right side
    268,170.85x = 50,521,381,727.82
  5. Step 5: Solve for x
    x = 50,521,381,727.82/268,170.85
  6. Step 6: Final answer
    x = 188,392.52

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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.