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Finding the Fourth Proportional to 411.37, 567.14 and 300.74

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Solution

The fourth proportional to 411.37, 567.14 and 300.74 is: 414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.37 : 567.14 = 300.74 : x
  2. Step 2: Convert to fraction form
    411.37/567.14 = 300.74/x
  3. Step 3: Cross multiply
    411.37x = 567.14 × 300.74
  4. Step 4: Simplify right side
    411.37x = 170,557.34
  5. Step 5: Solve for x
    x = 170,557.34/411.37
  6. Step 6: Final answer
    x = 414.61

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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.