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Finding the Fourth Proportional to 306,576.66, 423,067.14 and 170,608.44

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Solution

The fourth proportional to 306,576.66, 423,067.14 and 170,608.44 is: 235,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,576.66 : 423,067.14 = 170,608.44 : x
  2. Step 2: Convert to fraction form
    306,576.66/423,067.14 = 170,608.44/x
  3. Step 3: Cross multiply
    306,576.66x = 423,067.14 × 170,608.44
  4. Step 4: Simplify right side
    306,576.66x = 72,178,824,770.66
  5. Step 5: Solve for x
    x = 72,178,824,770.66/306,576.66
  6. Step 6: Final answer
    x = 235,434.83

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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.