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Finding the Fourth Proportional to 255.79, 352.94 and 176.98

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Solution

The fourth proportional to 255.79, 352.94 and 176.98 is: 244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.79 : 352.94 = 176.98 : x
  2. Step 2: Convert to fraction form
    255.79/352.94 = 176.98/x
  3. Step 3: Cross multiply
    255.79x = 352.94 × 176.98
  4. Step 4: Simplify right side
    255.79x = 62,462.88
  5. Step 5: Solve for x
    x = 62,462.88/255.79
  6. Step 6: Final answer
    x = 244.19

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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.