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Finding the Fourth Proportional to 295.05, 439.86 and 271.94

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Solution

The fourth proportional to 295.05, 439.86 and 271.94 is: 405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.05 : 439.86 = 271.94 : x
  2. Step 2: Convert to fraction form
    295.05/439.86 = 271.94/x
  3. Step 3: Cross multiply
    295.05x = 439.86 × 271.94
  4. Step 4: Simplify right side
    295.05x = 119,613.33
  5. Step 5: Solve for x
    x = 119,613.33/295.05
  6. Step 6: Final answer
    x = 405.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.