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Finding the Fourth Proportional to 479.59, 718.23 and 273.54

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Solution

The fourth proportional to 479.59, 718.23 and 273.54 is: 409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.59 : 718.23 = 273.54 : x
  2. Step 2: Convert to fraction form
    479.59/718.23 = 273.54/x
  3. Step 3: Cross multiply
    479.59x = 718.23 × 273.54
  4. Step 4: Simplify right side
    479.59x = 196,464.63
  5. Step 5: Solve for x
    x = 196,464.63/479.59
  6. Step 6: Final answer
    x = 409.65

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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.