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Finding the Fourth Proportional to 293.52, 439.47 and 211.98

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Solution

The fourth proportional to 293.52, 439.47 and 211.98 is: 317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.52 : 439.47 = 211.98 : x
  2. Step 2: Convert to fraction form
    293.52/439.47 = 211.98/x
  3. Step 3: Cross multiply
    293.52x = 439.47 × 211.98
  4. Step 4: Simplify right side
    293.52x = 93,158.85
  5. Step 5: Solve for x
    x = 93,158.85/293.52
  6. Step 6: Final answer
    x = 317.39

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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.