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Finding the Fourth Proportional to 254.93, 351.51 and 176.30

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Solution

The fourth proportional to 254.93, 351.51 and 176.30 is: 243.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.93 : 351.51 = 176.30 : x
  2. Step 2: Convert to fraction form
    254.93/351.51 = 176.30/x
  3. Step 3: Cross multiply
    254.93x = 351.51 × 176.30
  4. Step 4: Simplify right side
    254.93x = 61,971.21
  5. Step 5: Solve for x
    x = 61,971.21/254.93
  6. Step 6: Final answer
    x = 243.09

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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.