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Finding the Fourth Proportional to 479.10, 718.14 and 204.96

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Solution

The fourth proportional to 479.10, 718.14 and 204.96 is: 307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.10 : 718.14 = 204.96 : x
  2. Step 2: Convert to fraction form
    479.10/718.14 = 204.96/x
  3. Step 3: Cross multiply
    479.10x = 718.14 × 204.96
  4. Step 4: Simplify right side
    479.10x = 147,189.97
  5. Step 5: Solve for x
    x = 147,189.97/479.10
  6. Step 6: Final answer
    x = 307.22

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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.