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Finding the Fourth Proportional to 289.53, 436.05 and 244.17

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Solution

The fourth proportional to 289.53, 436.05 and 244.17 is: 367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289.53 : 436.05 = 244.17 : x
  2. Step 2: Convert to fraction form
    289.53/436.05 = 244.17/x
  3. Step 3: Cross multiply
    289.53x = 436.05 × 244.17
  4. Step 4: Simplify right side
    289.53x = 106,470.33
  5. Step 5: Solve for x
    x = 106,470.33/289.53
  6. Step 6: Final answer
    x = 367.74

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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.