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Finding the Fourth Proportional to 290.84, 436.64 and 182.28

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Solution

The fourth proportional to 290.84, 436.64 and 182.28 is: 273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290.84 : 436.64 = 182.28 : x
  2. Step 2: Convert to fraction form
    290.84/436.64 = 182.28/x
  3. Step 3: Cross multiply
    290.84x = 436.64 × 182.28
  4. Step 4: Simplify right side
    290.84x = 79,590.74
  5. Step 5: Solve for x
    x = 79,590.74/290.84
  6. Step 6: Final answer
    x = 273.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.