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Finding the Fourth Proportional to 175.74, 242.52 and 98.12

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Solution

The fourth proportional to 175.74, 242.52 and 98.12 is: 135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.74 : 242.52 = 98.12 : x
  2. Step 2: Convert to fraction form
    175.74/242.52 = 98.12/x
  3. Step 3: Cross multiply
    175.74x = 242.52 × 98.12
  4. Step 4: Simplify right side
    175.74x = 23,796.06
  5. Step 5: Solve for x
    x = 23,796.06/175.74
  6. Step 6: Final answer
    x = 135.40

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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.