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Finding the Fourth Proportional to 295.12, 405.80 and 263.84

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Solution

The fourth proportional to 295.12, 405.80 and 263.84 is: 362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.12 : 405.80 = 263.84 : x
  2. Step 2: Convert to fraction form
    295.12/405.80 = 263.84/x
  3. Step 3: Cross multiply
    295.12x = 405.80 × 263.84
  4. Step 4: Simplify right side
    295.12x = 107,066.27
  5. Step 5: Solve for x
    x = 107,066.27/295.12
  6. Step 6: Final answer
    x = 362.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.