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Finding the Fourth Proportional to 175.32, 261.66 and 160.86

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Solution

The fourth proportional to 175.32, 261.66 and 160.86 is: 240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.32 : 261.66 = 160.86 : x
  2. Step 2: Convert to fraction form
    175.32/261.66 = 160.86/x
  3. Step 3: Cross multiply
    175.32x = 261.66 × 160.86
  4. Step 4: Simplify right side
    175.32x = 42,090.63
  5. Step 5: Solve for x
    x = 42,090.63/175.32
  6. Step 6: Final answer
    x = 240.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.