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Finding the Fourth Proportional to 293.40, 439.47 and 197.10

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Solution

The fourth proportional to 293.40, 439.47 and 197.10 is: 295.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.40 : 439.47 = 197.10 : x
  2. Step 2: Convert to fraction form
    293.40/439.47 = 197.10/x
  3. Step 3: Cross multiply
    293.40x = 439.47 × 197.10
  4. Step 4: Simplify right side
    293.40x = 86,619.54
  5. Step 5: Solve for x
    x = 86,619.54/293.40
  6. Step 6: Final answer
    x = 295.23

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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.