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Finding the Fourth Proportional to 216.76, 298.86 and 175.16

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Solution

The fourth proportional to 216.76, 298.86 and 175.16 is: 241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.76 : 298.86 = 175.16 : x
  2. Step 2: Convert to fraction form
    216.76/298.86 = 175.16/x
  3. Step 3: Cross multiply
    216.76x = 298.86 × 175.16
  4. Step 4: Simplify right side
    216.76x = 52,348.32
  5. Step 5: Solve for x
    x = 52,348.32/216.76
  6. Step 6: Final answer
    x = 241.50

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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.