Home / 290,824.18-436,236.28-91,144.54

Finding the Fourth Proportional to 290,824.18, 436,236.28 and 91,144.54

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Solution

The fourth proportional to 290,824.18, 436,236.28 and 91,144.54 is: 136,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,824.18 : 436,236.28 = 91,144.54 : x
  2. Step 2: Convert to fraction form
    290,824.18/436,236.28 = 91,144.54/x
  3. Step 3: Cross multiply
    290,824.18x = 436,236.28 × 91,144.54
  4. Step 4: Simplify right side
    290,824.18x = 39,760,555,071.91
  5. Step 5: Solve for x
    x = 39,760,555,071.91/290,824.18
  6. Step 6: Final answer
    x = 136,716.81

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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.