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Finding the Fourth Proportional to 306.92, 423.54 and 175.88

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Solution

The fourth proportional to 306.92, 423.54 and 175.88 is: 242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.92 : 423.54 = 175.88 : x
  2. Step 2: Convert to fraction form
    306.92/423.54 = 175.88/x
  3. Step 3: Cross multiply
    306.92x = 423.54 × 175.88
  4. Step 4: Simplify right side
    306.92x = 74,492.22
  5. Step 5: Solve for x
    x = 74,492.22/306.92
  6. Step 6: Final answer
    x = 242.71

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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.