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Finding the Fourth Proportional to 308.36, 425.62 and 175.66

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Solution

The fourth proportional to 308.36, 425.62 and 175.66 is: 242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.36 : 425.62 = 175.66 : x
  2. Step 2: Convert to fraction form
    308.36/425.62 = 175.66/x
  3. Step 3: Cross multiply
    308.36x = 425.62 × 175.66
  4. Step 4: Simplify right side
    308.36x = 74,763.07
  5. Step 5: Solve for x
    x = 74,763.07/308.36
  6. Step 6: Final answer
    x = 242.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.