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Finding the Fourth Proportional to 407.17, 561.92 and 241.42

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Solution

The fourth proportional to 407.17, 561.92 and 241.42 is: 333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.17 : 561.92 = 241.42 : x
  2. Step 2: Convert to fraction form
    407.17/561.92 = 241.42/x
  3. Step 3: Cross multiply
    407.17x = 561.92 × 241.42
  4. Step 4: Simplify right side
    407.17x = 135,657.93
  5. Step 5: Solve for x
    x = 135,657.93/407.17
  6. Step 6: Final answer
    x = 333.17

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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.