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Finding the Fourth Proportional to 385.05, 576.97 and 293.47

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Solution

The fourth proportional to 385.05, 576.97 and 293.47 is: 439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.05 : 576.97 = 293.47 : x
  2. Step 2: Convert to fraction form
    385.05/576.97 = 293.47/x
  3. Step 3: Cross multiply
    385.05x = 576.97 × 293.47
  4. Step 4: Simplify right side
    385.05x = 169,323.39
  5. Step 5: Solve for x
    x = 169,323.39/385.05
  6. Step 6: Final answer
    x = 439.74

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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.