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Finding the Fourth Proportional to 576.90, 795.81 and 343.98

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Solution

The fourth proportional to 576.90, 795.81 and 343.98 is: 474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.90 : 795.81 = 343.98 : x
  2. Step 2: Convert to fraction form
    576.90/795.81 = 343.98/x
  3. Step 3: Cross multiply
    576.90x = 795.81 × 343.98
  4. Step 4: Simplify right side
    576.90x = 273,742.72
  5. Step 5: Solve for x
    x = 273,742.72/576.90
  6. Step 6: Final answer
    x = 474.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.