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Finding the Fourth Proportional to 295.08, 405.66 and 251.16

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Solution

The fourth proportional to 295.08, 405.66 and 251.16 is: 345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.08 : 405.66 = 251.16 : x
  2. Step 2: Convert to fraction form
    295.08/405.66 = 251.16/x
  3. Step 3: Cross multiply
    295.08x = 405.66 × 251.16
  4. Step 4: Simplify right side
    295.08x = 101,885.57
  5. Step 5: Solve for x
    x = 101,885.57/295.08
  6. Step 6: Final answer
    x = 345.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.