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Finding the Fourth Proportional to 289.86, 436.50 and 241.56

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Solution

The fourth proportional to 289.86, 436.50 and 241.56 is: 363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    289.86 : 436.50 = 241.56 : x
  2. Step 2: Convert to fraction form
    289.86/436.50 = 241.56/x
  3. Step 3: Cross multiply
    289.86x = 436.50 × 241.56
  4. Step 4: Simplify right side
    289.86x = 105,440.94
  5. Step 5: Solve for x
    x = 105,440.94/289.86
  6. Step 6: Final answer
    x = 363.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.