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Finding the Fourth Proportional to 319,576.68, 479,282.09 and 94,884.30

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Solution

The fourth proportional to 319,576.68, 479,282.09 and 94,884.30 is: 142,301.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,576.68 : 479,282.09 = 94,884.30 : x
  2. Step 2: Convert to fraction form
    319,576.68/479,282.09 = 94,884.30/x
  3. Step 3: Cross multiply
    319,576.68x = 479,282.09 × 94,884.30
  4. Step 4: Simplify right side
    319,576.68x = 45,476,345,137.77
  5. Step 5: Solve for x
    x = 45,476,345,137.77/319,576.68
  6. Step 6: Final answer
    x = 142,301.83

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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.