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Finding the Fourth Proportional to 306.97, 459.63 and 176.86

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Solution

The fourth proportional to 306.97, 459.63 and 176.86 is: 264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.97 : 459.63 = 176.86 : x
  2. Step 2: Convert to fraction form
    306.97/459.63 = 176.86/x
  3. Step 3: Cross multiply
    306.97x = 459.63 × 176.86
  4. Step 4: Simplify right side
    306.97x = 81,290.16
  5. Step 5: Solve for x
    x = 81,290.16/306.97
  6. Step 6: Final answer
    x = 264.81

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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.