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Finding the Fourth Proportional to 479.15, 717.27 and 293.57

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Solution

The fourth proportional to 479.15, 717.27 and 293.57 is: 439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.15 : 717.27 = 293.57 : x
  2. Step 2: Convert to fraction form
    479.15/717.27 = 293.57/x
  3. Step 3: Cross multiply
    479.15x = 717.27 × 293.57
  4. Step 4: Simplify right side
    479.15x = 210,568.95
  5. Step 5: Solve for x
    x = 210,568.95/479.15
  6. Step 6: Final answer
    x = 439.46

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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.