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Finding the Fourth Proportional to 576.85, 795.86 and 340.87

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Solution

The fourth proportional to 576.85, 795.86 and 340.87 is: 470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.85 : 795.86 = 340.87 : x
  2. Step 2: Convert to fraction form
    576.85/795.86 = 340.87/x
  3. Step 3: Cross multiply
    576.85x = 795.86 × 340.87
  4. Step 4: Simplify right side
    576.85x = 271,284.80
  5. Step 5: Solve for x
    x = 271,284.80/576.85
  6. Step 6: Final answer
    x = 470.29

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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.