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Finding the Fourth Proportional to 295.92, 440.61 and 291.54

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Solution

The fourth proportional to 295.92, 440.61 and 291.54 is: 434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.92 : 440.61 = 291.54 : x
  2. Step 2: Convert to fraction form
    295.92/440.61 = 291.54/x
  3. Step 3: Cross multiply
    295.92x = 440.61 × 291.54
  4. Step 4: Simplify right side
    295.92x = 128,455.44
  5. Step 5: Solve for x
    x = 128,455.44/295.92
  6. Step 6: Final answer
    x = 434.09

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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.