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Finding the Fourth Proportional to 175.21, 241.03 and 151.72

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Solution

The fourth proportional to 175.21, 241.03 and 151.72 is: 208.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.21 : 241.03 = 151.72 : x
  2. Step 2: Convert to fraction form
    175.21/241.03 = 151.72/x
  3. Step 3: Cross multiply
    175.21x = 241.03 × 151.72
  4. Step 4: Simplify right side
    175.21x = 36,569.07
  5. Step 5: Solve for x
    x = 36,569.07/175.21
  6. Step 6: Final answer
    x = 208.72

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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.