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Finding the Fourth Proportional to 306.30, 458.72 and 175.98

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Solution

The fourth proportional to 306.30, 458.72 and 175.98 is: 263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.30 : 458.72 = 175.98 : x
  2. Step 2: Convert to fraction form
    306.30/458.72 = 175.98/x
  3. Step 3: Cross multiply
    306.30x = 458.72 × 175.98
  4. Step 4: Simplify right side
    306.30x = 80,725.55
  5. Step 5: Solve for x
    x = 80,725.55/306.30
  6. Step 6: Final answer
    x = 263.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.