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Finding the Fourth Proportional to 175.17, 261.84 and 123.47

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Solution

The fourth proportional to 175.17, 261.84 and 123.47 is: 184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.17 : 261.84 = 123.47 : x
  2. Step 2: Convert to fraction form
    175.17/261.84 = 123.47/x
  3. Step 3: Cross multiply
    175.17x = 261.84 × 123.47
  4. Step 4: Simplify right side
    175.17x = 32,328.08
  5. Step 5: Solve for x
    x = 32,328.08/175.17
  6. Step 6: Final answer
    x = 184.55

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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.